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Leya [2.2K]
3 years ago
7

Which organisms play a key role in fixing nitrogen from the air into nitrates available for plants?

Biology
1 answer:
Westkost [7]3 years ago
7 0
Bacteria! Bacteria! Bacteria! :)
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An electron transport chain pumps __________ across a membrane while transferring __________ from one chemical to another.
diamong [38]
An electron transport chain pumps protons across a membrane while transferring electrons from one chemical to another.
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3 years ago
B. How does weathering affect Earth's surface?
Harman [31]

Answer:

Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time. The length of exposure often contributes to how vulnerable a rock is to weathering. Rocks, such as lavas, that are quickly buried beneath other rocks are less vulnerable to weathering and erosion than rocks that are exposed to agents such as wind and water.

Explanation:

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.

3 0
3 years ago
How might the loss of sea ice affect people, animals, or ecosystems?
zhenek [66]

Answer:

The Global Impacts of Arctic Sea Ice Loss. Some of the most important climate news this winter has been around the alarming lack of sea ice in the Arctic, which has been in decline due to the steady rise in Earth’s average air and ocean temperatures. While suffering polar bears are a poignant symbol of climate change, the effects of disappearing ice extend far beyond the Arctic circle and its inhabitants.

Explanation:

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3 years ago
List at least four things you can do to improve your ergonomics
Mandarinka [93]
Identify the warning signs of back pain caused by poor ergonomics and posture

Keep the body in alignment while sitting in an office chair and while standing

Get up and move

Use posture-friendly props and ergonomic office chairs when sitting

https://www.spine-health.com/wellness/ergonomics/ten-tips-improving-posture-and-ergonomics

Hope this helps!

4 0
4 years ago
Read 2 more answers
How is lake or river that freezes over helpful to the organisms in the water?
emmainna [20.7K]
Hello,

<span>Ice serves as a barrier between the water and the cold air above

Hope this helps</span>
3 0
3 years ago
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