It is false that comet lives are increased the more often that they pass by the sun. This is because when<span> a </span>comet<span> gets closer to the </span>sun<span>, a gaseous phase called coma will result from the ice on the nucleus.
It is false that comets do have tails to keep them away from the earth. They do not have tails but they have coma due to its icy state that is an indication of its other term as "dirty snowball" that escapes from the comet.</span>
True :) Acid cant burn its self.
<span>Red blood cells normally have a biconcave shape (picture a donut, but instead of a hole through the centre there's just a downward slope to the centre of the cell). If the cell takes on water, it will increase in size and the sloped areas will start to flatten out. If the cell loses water, it will begin to shrivel. Use these observations and your understanding of osmosis to answer the question!</span>
I think either C or B could be the answer
Answer:
The primary function of the plasma membrane is to protect the cell from its surroundings