How can the Earth be a closed system if space shuttles can leave the atmosphere? Hint: What leaves or doesn't leave the atmosphere? Question 4 options: Because it takes tremendous effort to break free from the laws of gravity to exit the Earth's atmosphere. When the Earth has received enough radiation from the sun, it creates an opening in the closed system that lets matter out. The Earth is a partially closed system.

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~