10. Below is the structure of octane, the major component of gasoline. What type(s) of bond(s) is/are found in a molecule of octane? (Hint: Think of the shape of the molecule.)

Η

H

H

H

Η

Η Η

Η

Η

H-C-C-C-C-C-C-C-C-H

H

H

Η Η Η Η Η

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

i would think a oil tanker that has leaked in a bay