Answer:
food chain? circle of life?
Explanation:
The answer is the last one d
Natural gas is comprised of methane with small amounts of ethane,propane,butane and pentane.
The simpler molecular structure of natural gas enables a clean burn, so it's combustion does not produce solid particles or sulpher. It is used for heating,cooking,electricity generation and fuel for some cars.
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Answer:
E - Long-term missions would also create social and psychological issues, such as extreme isolation and loneliness, that may have a negative impact on space travelers.
Explanation:
just did the test.
