1. Algae blocks sunlight from other organisms
2. Kills those that are autotrophs
3. Bacteria in pond will continue to multiply and break down everything dead/deteriorating
4. Bacteria takes over all oxygen supply
5. No life
The best answer is C i.e. humans might extract more water from the ground
Answer:
B. a decrease in vegetation.
Explanation:
For exclusion:
Cannot increase the vegetation.
And increase the soil erosion.
And decrease the quality of air.
G. She must try to use animals as subjects instead of humans.
There are no animals being involved in this study as it states in the question "...Involves human subjects."
