What is the texture of igneous rocks that cool very rapidly?

How many countries have portuguese as a national language?

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

What type of aid does nigeria receive? short term, tied, voluntary, bilateral, multilateral or long-term?