Every year species go extinct.
a. 3
b. 72
c. 1000
d. 2

d. 20000

Explanation:

It has been observed that over the years, species have been going extinct due to human reasons such as excessive hunting, environmental factors such as natural disasters, global warming and also due to changes in their genetic makeup or a reduced reproduction.

It has been estimated that every year 20,000 species are going extinct.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.