What activates a convection current, starting the flow of fluid (a) cold temperatures at the north pole (b) heated liquids at the earth surface (c) iron-rich blocks in the mantle (d) temperatures differences in the mantle

Yo! a girl out ! i will give brainliest! hu one of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

What does 2[tex] {2}^{ - 4} \times {2}^{ - 2} [/tex]

Given f(x) = 3x= 1 and g(x) = 2x-3, for which value of x does g(x)= f(2)? its for algebra