The flowchart below shows the major steps in a system that builds mp3 players.

which of the steps in the system are examples of processes?
a.
ii and iv only
b.
i, ii, iii, iv and v
c.
i, iii, and v only
d.
i, ii, iii, and iv only

A . II and IV only.

Explanation:

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.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.