Question

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Which of the following could an individual person do to have a
positive impact on an environment?
A. increase the amount of carbon dioxide in the air
B. take exotic species of plants out of a swamp
C. remove beneficial algae from a lake to keep it clean
D. use pesticides to protect yard grass
• As the populations of cities increase, and buildings take over the wild
landscape, many people are making an effort to form preserves, which
keep the plant and animal life of an area in its natural habitat. What is
the most likely reason these people are so determined to make these
preserved areas?
A. Preserves are like giant parks, and parks make a city prettier.
B. To prevent too many people from being able to move into the city.
C. Preserves make a lot of money for a city and can pay for more buildings.
D. Without their natural environment, plant and animal species will become extinct

Answer 1

1. C. remove beneficial algae from a lake to keep it clean

2. D. Without their natural environment, plant and animal species will become extinct