Freshwater - AP Environmental Science
Card 1 of 50
What percent of the Earth's water is readily available for drinking and agriculture?
What percent of the Earth's water is readily available for drinking and agriculture?
Tap to reveal answer
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
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All of the following characteristics apply to the riparian zone except .
All of the following characteristics apply to the riparian zone except .
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Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
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The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
Tap to reveal answer
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
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Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Tap to reveal answer
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
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About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
Tap to reveal answer
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
← Didn't Know|Knew It →
What percent of the Earth's water is readily available for drinking and agriculture?
What percent of the Earth's water is readily available for drinking and agriculture?
Tap to reveal answer
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
← Didn't Know|Knew It →
All of the following characteristics apply to the riparian zone except .
All of the following characteristics apply to the riparian zone except .
Tap to reveal answer
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
← Didn't Know|Knew It →
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
Tap to reveal answer
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
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Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Tap to reveal answer
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
← Didn't Know|Knew It →
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
Tap to reveal answer
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
← Didn't Know|Knew It →
What percent of the Earth's water is readily available for drinking and agriculture?
What percent of the Earth's water is readily available for drinking and agriculture?
Tap to reveal answer
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
← Didn't Know|Knew It →
All of the following characteristics apply to the riparian zone except .
All of the following characteristics apply to the riparian zone except .
Tap to reveal answer
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
← Didn't Know|Knew It →
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
Tap to reveal answer
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
← Didn't Know|Knew It →
Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Tap to reveal answer
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
← Didn't Know|Knew It →
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
Tap to reveal answer
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
← Didn't Know|Knew It →
What percent of the Earth's water is readily available for drinking and agriculture?
What percent of the Earth's water is readily available for drinking and agriculture?
Tap to reveal answer
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
97% of the Earth's water is saltwater and unusable for drinking or farming. of the 3% that is actually freshwater, 2% is frozen in glaciers, leaving humans with 1% of all water on earth to use for farming.
← Didn't Know|Knew It →
All of the following characteristics apply to the riparian zone except .
All of the following characteristics apply to the riparian zone except .
Tap to reveal answer
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
Shade provided by the riparian zone is crucial to stream temperature regulation.
The riparian zone is the edge of a river or stream, therefore it has high biodiversity due to edge effects. Biofilters in the riparian zone protect the aquatic environment it surrounds. Also, because the riparian zone spans distances of an aquatic environment's edge, it serves as a corridor for wildlife.
← Didn't Know|Knew It →
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
The Great Lakes of North America represent the largest source of freshwater on the planet. Approximately how many years ago did the Great Lakes form?
Tap to reveal answer
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
The correct response was 10,000 years ago. The Great Lakes formed during glacial recession of the most recent glaciation. This most recent glacial recession occurred between 10-15 thousands years ago. As the glaciers receded northward across North America, melting glacial waters drained and formed what is now known as the Great Lakes.
← Didn't Know|Knew It →
Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Freshwater is a necessary resource for human survival. Approximately what percent of the Earth's water supply is found in freshwater resources that are groundwater deposits (i.e. rivers, lakes, and streams)?
Tap to reveal answer
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
The correct response is 0.02%. The rest of the water resources are either too salty, too deep, or too cold in frozen icecaps.
← Didn't Know|Knew It →
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
About 2% of the Earth's water supply is suitable for human and plant consumption. 98% of Earth's water is found in the oceans and is too salty for human or plant consumption.
Where is a majority of Earth's fresh water found?
Tap to reveal answer
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
Lakes, streams, rivers and ground water account for about a half a percent of the fresh water found on Earth.
← Didn't Know|Knew It →