What are the physical processes of the Earth and does the weather impact the Earth's structures?

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

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

Which country has the largest salt flats in the world