A stands out most to me, CO comes from the air and air is basically oxygen we breath. When we exhale CO comes out (of course). I would say A is correct.
The one that Carbon footprint measures is : Greenhouse Gasses
Carbon Footprints are the Carbon Compounds emitted due to consumption of fossil fuels (such as gas oil) that could cause Greenhhouse effects
Hope this helps <span />
Answer:
Passive Transport
Explanation:
The movement of molecules from an area of High concentration to an area of lower concentration in a living cell is called Passive Transport.
Passive Transport does not require energy input.
An example is Diffusion.
<span>It is usually the best practice to start checking from his or her lower limbs, toes and gradually progress upwards ,legs waist , stomach, chest, hands and the head lastly. In short, do it from the bottom to the top.</span>
He found that the recessive trait such as the short plants disappeared, but only the dominent trait stayed which is tallness. When he allowed them to self pollinate, the recessive gene which is the shortness reappeared.