Which of the following is a way that nitrogen atoms move from a nonliving part of the environment into a living part of the environment? Select one:

Bacteria changing nitrogen in dead animals and plants that can then be absorbed by plants.

Animals consuming nitrogen in plant tissues.

Animals exhaling nitrogen gas into the atmosphere.

Bacteria changing nitrogen gas into ammonia that can then be absorbed by plants.

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Europe needs to build a trump-like wall that will spread across europe making it impossible for migrants to cross they need to spread pig guts all over this wall so the muslims will never consider crossing into europe..you might be asking "can't they just fly over with planes? " well yes they can so we will install thaad missile protections system to shoot down any aircraft that violates europe's air fourth would be to start a fourth reich in germany.. last but not least.. make europe great again!

Maybe on the physical part? i dunno i just guessed plus i really need the points