Which statement best compares the amount of water present on Earth today with the amount present millions of years ago? O There is slightly more water on Earth today.
O There is significantly less water on Earth today.
O There is significantly more water on Earth today.
There is about the same amount of water on Earth today.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

the animal that would be cutest if scaled down to the size of a cat? elephant

feral cats are estimated to eat tens of millions of native animals each night in australia