Brainlies ! 1. which statement is true about sodium chloride (nacl)? it is a salt because it decreases the concentration of metallic ions. it is an acid because it is formed by the reaction of a salt and an acid. it is a salt because it is formed by the reaction of an acid and a base. it is an acid because it increases the concentration of nonmetallic ions. 2. which of the following increases the concentration of oh- ions? acid base water salt

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.