Which two events happen in the rock cycle

Weathering and cooling

Explanation:

Melted rock or magma is sent to the earth's surface by a volcano. It cools and forms igneous rock.

Next the weather, or a river, and other events will slowly break up this rock into small pieces of sediment.

As sediment builds up and hardens over years,  sedimentary rock is formed.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.