If the age of the middle layer of a rock sample is between 300 million years and 1 billion
years, which of the following could be the age of the lowermost layer?
O 2 million years to 5 million years
O 900 million years to 1 billion years
O
1.5 billion years to 2.5 billion years
O 800 million years to 950 million years
What is the answer?

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .