A protostar forms once the nebular cloud condenses and the core begins to heat. To heat is the answer hope this helps you!!
Answer:
The further you move down a classification pyramid, the fewer species there will be at each level >:3
Explanation:
:3
Water! It is essential to have water
C? Hope I’m right
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B. Using fewer fossil fuels, such as gasoline for a car, reduces the emission of harmful pollutants into the air
