Seafloor spreading<span> is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. </span>Seafloor spreading<span> helps explain continental drift in the theory of plate tectonics. </span>
Answer: Gneiss
Explanation: Gneiss is a metamorphic rock formed from shale at very high temperature and pressure condition. They exhibit a preferred alignment or orientation of platy minerals called foliation. They are coarse grained and exhibit gneissose banding. They are formed from highest grade regional metamorphism with temperature between 450 - 600 degree celcius and pressure between 800 - 1000 mega pascal. They generally occur in cores of fold mountain belts where mountain ranges have been eroded.
Answer:
Its d
Explanation: Because president kenndeys goal was to beat the soviets in the race to go to the moon/explore space
The answer would be the last option
The main difference between asteroids<span> and </span>comets<span> is their composition, as in, what they are made of. </span>Asteroids<span> are made up of metals and rocky material, while </span>comets<span>are made up of ice, dust and rocky material. Both </span>asteroids<span> and </span>comets<span> were formed early in the history of the solar system about 4.5 billion years ago.</span>
