1.) To make energy and food
2.) The chloroplast
The correct option is IT CAN FORM FOUR COVALENT BONDS.
Carbon is capable of forming four covalent bond in order to attain the octet form, this gives it the ability to combine with different elements in different ways. The ability to combine with different elements makes carbon to be abundant on the earth, because it is found in variety of different substances.
Viruses are not considered living because they cannot survive without a host organism, and they do not exhibit the characteristics of life.
I would say keep the soil from eroding and doesn't let it get dried out so fast.
I would think to protect the wound and clot any blood
