Answer:
A. Uniformitarianism
Explanation:
The principle of Uniformitarianism was proposed by a Scottish Geologist, James Hutton.
The principle is simply stated as "the present is the key to the past".
The processes that have occurred in geologic past is still in play today. By looking at rock sequences in our present day, we can actually have a firm grasp of the processes they have undergone in the past.
We have polluted it— the air, water and the ground.
Some people have tried to clean up the environment
Answer:
d. Nucleus
Explanation:
the nucleus stores the DNA which is the genetic code for the organism.
Answer:
Most attenuated vaccines are viral, some are bacterial in nature. Examples include the viral diseases yellow fever, measles, mumps, and rubella, and the bacterial disease typhoid
Explanation:
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<span>It would die as harmful substances entered the cells.</span>
