Scientists think that movements in the liquid outer core create Earth's magnetic field. True or false

All of the following are major european ethnic groups except a celtic b. germanic c slavie iberian d select the best answer from the choices provided.

What is the result of the greenhouse effect? a. heat is deflected from the atmosphere. b. heat is released from the atmosphere. c. heat is kept in the atmosphere. d. plants are able to grow in the tropics where the air is the heaviest.

The earth rotates on its axis and revolves around the sun every