; to find the length of the hypotenuse, you have to use the pythagorean theorem, which states that, in a right triangle,
.
and
would be the two legs, while
would be the hypotenuse. You need to plug in the values of the legs as
and
:
. Solve for the squares of the two numbers, resulting in
, and ultimately
. Find the square root of
and
, and you get
.
Answer: True
Explanation:
The index fossil are the fossils that are of animals and plants that remained preserved in the rock of the earth. It describes the particular span of the geological time or the environment. An index fossil can be easily recognized, is widely distributed and abundant.
The index fossil is the basis for defining the boundaries of the geological time scale with the correlation of the strata.
Those organisms which exhibited the short vertical range that is the life span on earth and the wide lateral range that is geographic distribution can be included as index fossil.
These fossils are indicative of the environment in which the organism used to live.
The most populated region of Australia is the southeastern coast because drops grow much better there and the vast majority of Australia is desert.
