Scientific research can have a variety of positive and negative impacts on the environment. Many different kinds of research are currently taking place in the Amazon rainforest, including research in the areas of agriculture, medicine,
and sustainability. What might be a positive consequence
of the research that is taking place in the Amazon rainforest?
a. An increase in land available for grazing.
b. The extinction of many species of organisms.
C. A decrease in overall rainforest biodiversity.
d. Discovering compounds that can treat disease.

A or D- most likely D

Explanation:

I don't know if the question is in relation to any specific research, so take it with a grain of salt. A or D make the most sense since B and C are negative impacts to the environment. I hope this helps!

Suppose the climate in a habitat changes. Over time, the amount of precipitation decreases by 20 percent. It will affect the habitat because those species adapted to drier environments will replace species less suited to the new climate.

Explanation:

This best situation explains the reason for adaptation and those that adapted quickly will replace those finding it hard to adapt, hence; their would be replacement of species as those that are able to thrive will be comfortable with the sudden change in the environment. Charle's Darwin theory comes in place, survival of the most fittest to the new environment.