Which best describes how igneous rocks are formed?

a. layers of dirt and other rocks are pressed together to form igneous rocks.

b. molten material in the earth cools and hardens to form igneous rocks.

c. elements in the earth form igneous solids with crystals.

d. wind erodes mountains into small igneous rocks.

Why might have people followed the rivers to find their way into asia

How are farmers that use no plow farming methods able to improve air quality for the people around the fram

Identify, in detail, three environmental effects of agriculture and explain how the actions of farmers cause them. what is the relationship between poverty and obesity in america and why? what are genetically modified organisms? list two pros and two cons for using genetically modified organisms. y'all this is due !