PLEASE HELP WILL MARK BRAINLIEST!! What is true about ice cores?

Ice cores can determine how the environment has changed

Ice cores can help scientists create a record of the local climate for thousands of
years

Ice cores can tell how concentrations of atmospheric gases have changed

All of the above are true

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

What is the most common structure of volcanoes?