What happens when a penny is dropped from a height of 20 meters? O The force of gravity causes it to accelerate.
O It falls at a constant velocity.
O Its mass doubles for every second it falls.
O It changes direction every 9.8 meters.

#1.The force of gravity causes it to accelerate

Explanation:

As acceleration is the rate of change in velocity of an object with respect to time. ... The acceleration of penny is due to the force of gravity. Thus, we can conclude that the force of gravity causes it to accelerate.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.