One thing scientists in the late 1700s could determine about the fossils they were finding were fossils in the upper layers were younger than fossils in lower layers. The correct answer is A.
Answer: The answer is speed, distance and very large
Explanation:
The speed of light is the rate at which light travels through empty space, or about 300,000 km per second.
A light-year is a measurement of distance .
The distance between stars is measured in light-years rather than in miles or kilometers because the distance between stars is very large .
Pls give brainliest!!!!
Fossil fuels, they are natural fuels (because they are made of living organisms)
Answer:
Mutations, gene flow, and sexual reproduction are all major causes of variation. By altering the genes of individuals in a population, DNA mutation causes genetic variation. As new individuals with different gene combinations migrate into a population, they cause genetic variation.
Explanation:
B)
The answer is B!!!!!!!!!!
