This subatomic particle has a negative charge?

This semester we talked about a huge range of topics involved in the field of environmental science. Explain some concepts we learned about this semester and why they are so important.  Give me 10 points worth of answer.

Which of these is considered a greenhouse gas?

The physical separation of solids from the waste stream in sewage treatment?

What do we make glass from?

21. The instrument used to inspect the urinary bladder is a:

Which of the following is negatively charged?

The organic molecule that is classically hydrophobic is

States are not allowed to pass their own laws as a supplement to what is covered by Medicare.

When atoms share electrons the kind of chemical bond formed is