Yes it is very hard obtain it
Answer:
you are so good . what do you do ? tell me ☺️
Explanation:
Fossils form in five ways: preservation of original remains, permineralization, molds and casts, replacement, and compression. ... Index fossils help scientists to find the relative age of a rock layer and match it up with other rock layers.
The answer is D.
As children grow older and go into adulthood, their metabolism actually slows down. The older you are the slower your metabolism becomes. Obese children can find it extremely hard to have a healthy body composition as an adult.