What can happen due to competition with a population?

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Will mark brainliest how many electrons can be held in the energy level n = 4?