Answer:
the answer is C-in areas with different air pressures
Explanation:
Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated.
Answer:
my classes are also boring
Explanation:
<span>Matter is recycled within and between ecosystems through biogeochemical cycles.
Hope this helps</span>
The answer is False I believe
<span>All matter can be classified into two categories: pure substances and mixtures. A pure substance consists of a single element or compound. A mixture, however, is made up of different compounds and/or elements.</span><span />
In mammals, the powerful muscle that aids in breathing is the diaphragm. This muscle expands and contracts the chest cavity and forces air in and out of the lungs.
Hope that helped =)
