What are the general characteristics of a liquid

Ineed the answer to question 1 , i’m desperate

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.