I will only revise it, but not edit it.
It may assess that every year 26 million animals in the United States would continuously utilize similarly as a pet. Animals are being used to test scientific developments and commercial products. New medical treatments are tested on animals to verify the toxicity of new medications or the safety of a human-used product. The healthcare and the commercial industries are also turning to the animal experiments for these understandings.
A) affect is the best word to complete this
The only answer chose that can not be increase is B. Seasons, there are set days for the beginning and ending of each season that does not change.
All the others can be increased.
Hope this helps you. :-)
Probably not but no one really knows 1000% because there isn't any evidence to back it up
