Methane has the formula CH₄. Work out the % of carbon
and hydrogen in it. (Ar: C = 12, H = 1)​

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe