Ava was studying the history of Earth. She learned that radioactive decay helps scientists to determine rock ages. Explain how radioactive dating allows scientists to calculate the ages of rocks.

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

Someone me with this: a mineral' is determined by its actomic structure.

Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?