There are 8 types of fossil fuels. The 8 types of fossil fuels are Crude Oil, Gasoline, Diesel, Fuel Oils, Natural Gas, Coal, Fuel Regulations, and Petroleum.
Answer:
Option C
Explanation:
Given -
Total number of initially marked lizards (M) 
Total number of recaptured lizards (C) 
Total number of recaptured marked lizards (R) 
As we know that -

We have to find "N" . "N" is the total population size of lizards in a 2-hectare plot in eastern Arizona.
Thus, on rearranging the above equation, we get -

Substituting the given values in above equation, we get -

Hence, option C is correct
When conducting legal experiments on animals, a researcher needs to obtain consent from the INSTITUTIONAL RESEARCH BOARD.
Each research institution has research board which sees into uses of animals for research purposes, consent must be obtained from the board before experiments involving usage of animals is carried out.
I think the correct answer from the choices listed above is option B. Extrinsic motivation is compelled by one’s own enjoyment. It is a behavior or response that is driven by external rewards so it will really depend on the individual. Hope this answers the question.<span />
They are really different then most kinds<span />