B) pumps blood throughout the body.
Answer: Option (a) is the correct answer.
Explanation:
A water molecule contains two hydrogen atoms and one oxygen atom. The chemical formula of water is .
Here, hydrogen is electropositive whereas oxygen atom is electronegative in nature. Hence, oxygen atom pulls electrons from hydrogen atom and as a result partial positive charge develops on hydrogen and partial negative charge develops on oxygen atom.
Therefore, molecule of water becomes polar in nature.
Thus, water is considered a polar molecule because it has partial positive and negative charges at each end.
The answer is radioactive dating
Plants contain chloroplasts, which thus contain chlorophyll, the chlorophyll absorbs white light, and reflects green light, ( causing the green pigment), the light is then used as an energy source to catalyse the reaction between glucose and water