What occurs in the brain (with regard to our muscles) as we train and even as we sleep?​

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint