19. Which impact effects could have caused a decrease in photosynthesis rates? Select all that apply.
A. earthquakes
B. ejecta
C. tsunamis
D. wildfires

What are the similarities and differences in the way geologists and biologists approximate the age of the earth? justify your response in two or more complete sentences.

Which of the following statements best describes east asia? a. east asia is known to be the crafle of civilizationb. east asia is one of the world's most populates placesc. east asia is one of the worlds riches placesd. east asia is located near the equator me asap huhu

Where did the solar system come from?