Please help with the following questions, 50 points AND Brainliest if ALL are correct.

1) Exhaust from motor vehicles is the number one cause of what?
A. carbon monoxide pollution
B. acid rain
C. mercury poisoning
D. sulfur dioxide pollution

2) Choose all the answers that apply.
Carbon dioxide:
A. is a waste product of photosynthesis
B. is a waste product of respiration
C. is the most abundant gas in the atmosphere
D. is the leading cause of the greenhouse effect
E. is released when fossil fuels are burned

3) Choose all the answers that apply.
The greenhouse effect is:
A. slowly increasing sea levels
B. caused when atmospheric gases trap heat
C. slowly increasing global temperature
D. melting the polar ice caps
E. increasing because of carbon dioxide emissions

4) Electrical power plants are the main contributor of what?
A. mercury poisoning
B. sulfur dioxide pollution
C. oxygen pollution
D. pollution

5) Which of the following is the best way to slow the greenhouse effect?
A. drive more often
B. stop using electricity
C. increase the amount of oxygen released by plants
D. use energy sources other than fossil fuels

6) Which part of the water cycle is happening when it is raining in Seattle, Washington?
A. precipitation
B. condensation
C. evaporation
D. respiration

7) Choose all the answers that apply.
Water on earth:
A. is slowly decreasing in amount
B. can be used to generate electricity
C. is not considered a true natural resource
D. is recycled
E. is slowly increasing in amount

8) It is important to pick up waste from your pet because _____.
A. mercury in waste can cause mercury poisoning in fish
B. bacteria in waste can infect aquatic organisms
C. bacteria in waste decreases the amount of oxygen in water
D. nutrients in waste can increase the algae population

9) Choose all the answers that apply.
Which of the following is a source of watershed pollution?
A. pesticide
B. trash
C. chemical spills
D. animal waste
E. fertilizer

10) Which of the following statements is true?
A. Groundwater is not part of the water cycle.
B. Most of the earth's water is freshwater.
C. Thermal pollution is the main disadvantage of hydroelectric power.
D. Refining oil pollutes the air with nitrogen dioxide.

11) Choose all the answers that apply.
Which of the following are renewable resources?
A. oil
B. water
C. wood
D. coal

12) Which of the following statements is true?
A. Paper can be recycled, but plastic and metal cannot.
B. Individuals cannot protect the environment, only the government can.
C. Walking short distances instead of driving can help reduce the greenhouse effect.
D. Contour plowing increases the rate of soil erosion.

Thank you so much