Question

1. which of the following is an example of renewable energy?

a. coal
b. oil
c. solar
d. nuclear

1. all of the following would be considered evidence that would support the claim by a scientist that he had identified a mutualistic relationship except

a. one organism is being harmed in the relationship
b. both organisms seem to be thriving in the environment
c. the organisms are only found together
d. separating the organisms seems to have a negative effect

1. what causes acid rain?

a. chlorofluorocarbons react with water in the atmosphere to form acids.
b. pesticides and fertilizers react with water in the atmosphere to form acids.
c. steam from nuclear power plants reacts with water in the atmosphere to form acids.
d. gases from burning fossil fuels react with water in the atmosphere to form acids.

1. which of the following describes a community?

a. a family of bears
b. a school of fish and the water they swim in
c. all the squirrels, birds, worms, grass, trees and insects that are found in a forest
d. all the pine trees in a forest

Explanation:

Question 18

Renewable energy is energy from sources that are naturally replenished. Solar energy is from the sun and is renewable. Coal, oil, and nuclear (nuclear fuel is finite) are non - renewable.

In a mutualistic relationship, both organisms benefit. Option a shows one harmed (not mutualistic), option b shows both thriving (mutualistic), option c shows organisms found together (could be mutualistic), option d shows separating with negative effect (not mutualistic, but the question is about evidence for mutualism. The one with one organism harmed is not mutualistic, so it's the exception.

Acid rain is caused by pollutants like sulfur dioxide and nitrogen oxides from burning fossil fuels (gases from fossil fuels react with water in the atmosphere to form acids). Chlorofluorocarbons cause ozone depletion, pesticides and fertilizers cause water pollution, steam from nuclear plants doesn't cause acid rain.

Answer:

c. Solar

Question 19