Why do planets orbit the Sun? The Sun is the only celestial object that has a gravitational pullThe Sun’s chemical composition makes it attract planetsOnly celestial bodies that emit light, like the Sun, can be at the center of an orbitThe Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull

D

Explanation:

The sun is the most massive object in our solar system, so it exerts the greatest gravitational pull

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands