Heat transfer within a fluid takes place by what

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

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.

What is the climate of the himalayas? a. cold and wet c. cold and dry b. hot and humid d. hot and dry