2. If the mean radius of Earth is 6,371 km, about how many Earths can fit along the diameter of the Sun?
Type here

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.