Please help me its for a lab.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse