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.

eukarya because is is like alche and b is bacteria and d is animals

explanation:

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.