Earth is approximately 4.5 billion years old. Is it likely that any of the rocks that were on Earth's surface when it first formed are still in existence?
A.
No, rock material is constantly recycled on Earth's surface through the rock cycle.
B.
No, most of Earth's magma did not solidify until 1 billion years ago.
C.
Yes, Earth's surface has changed very little since Earth was first formed.
D.
Yes, rocks are very hard and should be able to survive for 4.5 billion years.

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.

Explain what happened when the storm surges from hurricanes reached the gulf coast