Volcanic eruptions occur because of a. magma that needs to be released b. plate tectonics c. stress and pressure d. all of the above

The process by which liquid water changes into water vapour is called what ?

In an effort to japan recover from the devastating effects of the 1929 depression, japanese military leaders in the 1930s formed an alliance with nazi germany negotiated more trade treaties with the soviet union closed its doors to western trade adopted a policy of imperialist expansion

3ways , explain how advance technology affects the word population