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Hydrothermal vents, submarine hot springs, and methane cold seeps release heat and chemicals deep below the surface of the ocean. Surprisingly, the areas around these sites are able to support ecosystems. Based on this information, such ocean ecosyst
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
If water is recycled in the atmosphere, which best describes why water availability on Earth is decreasing?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
Which best explains why all of the Earth’s freshwater is not available for human use?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
Deep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
Which tool would most likely be used by scientists to explore a hydrothermal vent at the Mid-Atlantic Ridge?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
When the accumulation of rain flows over the parking lots and roads in North Carolina, it washes pollutants into bodies of water. How is the pollution classified?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
Why is water from an aquifer more likely to be cleaner than water from other sources?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
Which best describes the characteristics of a river basin?
A. chemosynthesis
C. Earth’s freshwater continues to become more polluted, reducing the supply of freshwater safe for humans to consume.
D. because pollutants are filtered by rock and soil deep within Earth
remote operated vehicle
A. the land drained by a river and its tributaries
primary producers that create energy from oxidizing chemicals.
Most of Earth’s freshwater is frozen water.
Nonpoint source pollution
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