Certain gases in the atmosphere trap heat on earth.

what is the name of this phenomenon?

a.
the greenhouse effect

b.
global warming

c.
glacial melting

d.
cooling period

this is science not mathematics

Acircle has a circumference of 28.36 units what is the diameter of the circle

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?