1. which layer of the earth do convection currents occur in? (1pt)

2. explain how these convection currents cause the crust of the earth to
move. (5pts)

directions: read the lesson tab in the lesson to answer questions 3 through 8

3. according to the theory of continental drift, what did the earth’s continents look like 255 million years ago? what is the name of this landmass? (2pts)

4. what is the petoskey stone, and where was it found? (2pts)

5. how does the petoskey stone prove the theory of continental drift? (5pts)

6. how does the shape and size of the continents today support the theory of continental drift? (5pts)

7. explain how looking at the magnetism of certain rocks support the idea that the continents have moved and changed over time. (5pts)

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

use photo math tells u all the answers thats what i use