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miv72 [106K]
3 years ago
15

How does a hydroelectric dam work?

Biology
1 answer:
Nastasia [14]3 years ago
4 0

Answer:

to create a reservoir where water is stored at a given height

Explanation:

The water from the reservoir is allowed to flow over the dam in a controlled way. As the water falls it turns turbines and generates electricity.

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Consider the parts of a polar ecosystem and a desert ecosystem.
g100num [7]

Answer: Abiotic factor for polar: Ice

Abiotic for desert: Sand

Biotic for polar: Polar bears

Biotic for desert: Cacti

The types of factors are different because there are different set conditions for each ecosystem. A cactus is built for it's hot, dry ecosystem. If it were to move to a polar ecosystem it would not survive there. Same for the polar bear. It's built for polar regions. It has white fur to blend with the white ice to help it blend in and it's adapted to swim to get it's food source.

Explanation:

7 0
3 years ago
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Pretend to be a green plant and tell me about ur day(make sure it explains photosynthesis) *using all my points*
monitta

Answer:

Plants are made up of roots, stems, and leaves, and most produce flowers, fruit, and seeds. ... Using carbon dioxide, water, nutrients, and energy from sunlight, the chlorophyll makes the food that the plant needs. This process is called photosynthesis. During this process, plants release oxygen into the air. During the day, plants soak up sunlight during photosynthesis, the process they use to get energy. But when the sun goes down, plants' opportunity to eat disappears and other physiological processes take over, including energy metabolism and growth. Plants release oxygen during the day in the presence of natural light through the process of photosynthesis. While at night, the plants uptake oxygen and release carbon dioxide, which is called respiration.

Explanation:

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3 years ago
The part of the leaf which is connected to the transport system of the leaf is the?
eimsori [14]
The part of the leaf that is connected to the transport sister in the veins of the leaf.
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The central nervous system includes all of the following except: brain spinal cord nerves that reach the tissues in limbs cerebe
il63 [147K]

Answer:

My answer is the CNS consist of the brain and the spinal cord nerves but not cerebellum.

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Using two or more sentences, describe how a light microscope creates a magnified image.
a_sh-v [17]

Answer:  A microscope is an instrument that produces a clear magnified image of an object viewed through it. A microscope must be able not only to magnify objects sufficiently but also to resolve, or separate, the fine details of the object that are of interest to the viewer. In the optical microscope visible light rays, reflected from or transmitted by the viewed object, pass through a series of lenses and form an enlarged image of the object. This image is produced at the normal distance of clearest vision, which is about 10 inches, or 25 centimetres, from the eye of the viewer.

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