Biology, 24.05.2020 04:00 ponylover9558

A rock sample contains 25 percent k-40 and 75 percent daughter product ar-40. if k-40 has a half-life of 1.3 billion years, how old is the rock?

Answers: 1

Show answers

Another question on Biology

Biology, 22.06.2019 03:00

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.

Answers: 1

Answer

Biology, 22.06.2019 08:00

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Answers: 3

Answer

Biology, 22.06.2019 12:30

This is the interaction of two organisms where one is and the other is neither nor harmed.

Answers: 1

Answer

Biology, 22.06.2019 18:30

Support mangrove trees out of the water. a) pneumatophores b) prop roots c) sand dunes d) tide supports

Answers: 1

Answer

You know the right answer?

A rock sample contains 25 percent k-40 and 75 percent daughter product ar-40. if k-40 has a half-lif...