Answer is A.
Archaea requires neither sunlight for photosynthesis as do plants, nor oxygen. Archaea absorbs CO2, N2, or H2S and gives off methane gas as a waste product the same way humans breathe in oxygen and breathe out carbon dioxide. An example is chemosynthetic bacteria by sea drifts. They use chemical energy to produce vital processes to live.
Answer:
Water- from water comes from a variety of sources, including many of the same sources as tap water.
Leather- from rawhide and skins. The most common raw material is cattle hide.
plastic- from cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process
Explanation:
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Answer: Negative
When converting from scientific notation to standard notation if the power of 10 is negative we move the decimal to the left. If it is positive we move the decimal to the right.
Example: 3*10^-3=.03 and 3*10^3=300
You need to do speed divided by time