EASY 12 POINTS ⚠️⚠️ I. Alternate freezing and thawing
II. Karst topography
III. Plant roots
IV. Exfoliation
V. Abrasion
Weathering can be either a chemical or a physical process. The action of water causes physical weathering of rock. Which examples of weathering are the result of the action of water?
A) I, II, V
B) I. and II.
C) I, II, III.
D) I, II, IV, V

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

What does si stand for,when referring to a system of measurement

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?