Can you guys help me please its pretty easy

Horizontal and vertical Speed are indirect towards each other and therefore the earth moves. This causes it to be in constant new positions, causing seasons.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

Aplant cell has vacuoles and a cell wall