science help pls pls

posted by .

Dams are used to produce hydroelectric power. Which of these best describes the impact of a dam on the environment?

It causes air pollution.
It reduces the level of groundwater.
It causes changes in the river ecosystem.
It reduces the level of oxygen in river water.

is it c pls help me

  • science help pls pls -

    Yes, c.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Please Help!

    If we ran out of fuels which could we use to almost replace them. Hydroelectric Wind Solar GeoThermal DUE 2MORROW! duplicate post. Although they could all help, Solar and Wind are the most promising. I suppose I'd choose solar, but …
  2. physics.pls help

    An ice hut used for winter fishing is at rest on a level patch of snow. The mass of the hut is 80kg. A wind exerts a horizontal force of 205N on the hut, and causes it to accelerate. While in motion, the magnitude of the force of friction …
  3. science help pls pls

    Which of these is an example of how the ocean plays an important role in climate change?
  4. math help pls pls pls

    Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th …
  5. science help pls pls

    The information about groundwater recorded by a student is valid when it is not biased its results cannot be repeated it is not obtained from a primary source its findings do not have to be shared with others is it a pls help me
  6. science help pls pls

    Which of these surface features are formed when the acid in groundwater reacts with limestone?
  7. science help PLS

    A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to an increase in illness among people living along the coast. Which of these is the best method to solve this …
  8. science help pls pls

    A pond is located beside an open mine. Mercury from the mine contaminates the river water. This is an example of single pollution multiple pollution point source pollution non-point source pollution would this one be c or b. im having …
  9. science pls help

    Which of the following causes the formation of surf on a breaking wave?
  10. SCIENCE HELP PLS

    How does using coal to generate electricity affect the environment?

More Similar Questions