B this one is pretty easy
Answer:
it should be A or rain to be specific
I think everything is correct besides letter G. personally i would circle the other option- ‘dominant.’ other then that, i think everything is correct
Almost all species on earth feed on plants to get nutrients
Given the age of the meteorite is 4.5 billion years old with 78 atoms of lead-206 the answer should be B. 156. The half-life of uranium-238 in order to decay into lead-206 is 4.46 billion years, which means that the original number of atoms is 156.