Asap you have 5 blocks of different shapes, different sizes, and different materials. you put them in water and see that some float and some sink (see picture). the object with the smallest density is 1. a 2.b 3.c 4.d

D, because density is like the full mass, and object D is floating, since it has a lot more air or mass in it

good one: produce hormones that plants grow.

bad one: the problem with organic matter is that while plant nutrients are needed for crop growth, they can also stimulate excessive growth of the wrong plants – mainly, algae.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

: )