Explain the processes of headward erosion and stream piracy.

Prompt compare the three types of volcanic mountains in terms of shape, type of eruption, and the minerals that make up the volcano

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi