Haploid cells are sex cells or gametes.
They need energy to produce oxygen
It was an asteroid that came to earth two billions years ago and scientists says that there might be another one coming.so we might live in space for a couple of months or years. so that why the dinosaur die.
point b i think, because you have to see the amount of steepness in the slope.
Answer:
b if wrong sorry
but I am sure answer is b