C. they created the globe after they realized it was round
Answer:
The diversity of species
Explanation:
Darwin investigated the diversity of species by observing the physical differences between them. He concluded that all the species came from the same ancestor in common. And that the evolution is given by natural selection (or adaptation to the environment). Only specimens more adapted to the environment could survive, reproduce and pass their genetic traits to their offspring.
For example, the long neck of the giraffes is due to the fact that only the highest ones reached the leaves of the trees for food and with that they managed to survive.
<u>ANSWER</u>:- option A formation of fossil fuels.
<u>Explanation</u>:-
- Fossil fuels are formed from dead and decaying plants and animal.
- When the dead and decaying plants and animals are exposed to heat and pressure over a long period of time they get converted to oil, coal, gas etc.
- These oil ,coal, gas are called as fossil fuels.
- The entire process of formation of fossil fuels can take place over a million of years.
- In contrast to the formation of fossil fuels , the process of photosynthesis in plants, respiration in animals and emission of waste is a phenomena which occurs at daily basis and over a short interval of time.
So, <em>the formation of fossil fuels is the phenomena which takes the longest time in the carbon cycle.</em>
Diffusion is the movement of gas or liquid particles from a high to a low concentration. Oxygen is diffused into the bloodstream and carbon dioxide diffuses out the blood stream through the alveoli.
