When you step on a lego. You push on the lego and the lego pushes back on you. Which Newton's law is that?

Newton's 3rd Law

Explanation:

every action has an equal and opposite reaction.

you step on the Lego which pushes a force on the Lego (down), and the Lego gets you back by pushing it's force on you(up).

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.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.