Answer:
Environmental scientists look for solutions to protect the environment, while chemists develop new products.
Explanation:
The last two sentences use the conjunction while meaning <em>whereas</em>, i.e. indicating a contrast. So the purpose of sentences 3 and 4 is to contrast certain things about environmental scientists and chemists. However, the fourth sentence contrasts only <u>level of education</u> required for these jobs.
The third sentence refers to <u>actual</u> <u>work</u> that environmental scientists and chemists do. Therefore, this sentence most accurately describes a way in which the jobs of environmental scientists and chemists contrast.
Answer: Yes, technology serves a very important role in communication. Imagine airports not knowing when a plane was coming. Technology helps with that and other things such as surgerys or simply talking to a relative who lives far away
Answer: A. Key details are the first ones provided in the passage.
Explanation:
Answer:
That's true, because if it is unclassified, think about it, is that document really existant or important if it went unclassified? Or is it just lost?
It doesnt really matter. Your spending the same money no matter how you pay.