SUBSTANCE: Material composed of only one kind of matter throughout (same atoms or same molecules) ELEMENT: A substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen.
If the problem is not addressed the world we become hot because of global warming.
three effective solutions would be a decrease in CO2, no more fossil fuels, and stop littering
the correct arrangement of the above sentences is as follows: sentence 3- sentence 5- sentence 2- sentence 6- sentence 1- sentence 4.
Answer;
A) island forms and mainland forms descended from common ancestors.
Explanation;
-Islands tend to host very distinct but limited sets or species; on a given island a spectacular collection of one related group of species would be present and thriving, but many entire families or even higher taxa would be completely absent.
-All the species on the islands and the nearest continent are closely related to one another, however, each species had a set of adaptations that suits it for a particular environment. This means that the island forms and mainland forms descended from common ancestors.
I think its A but I'm not sure.