Answer:
Viscosity directly affect the speed of convictions.
Explanation:
The speed of convection in Earth’s mantle, oceans, and atmosphere also depends on the viscosity of the fluids. If the viscosity of fluids is higher so it takes more time to complete the process of convection in Earth’s mantle, oceans, and atmosphere, while on the other hand, if there is lower viscosity of fluids, the conviction in the mantle, oceans, and atmosphere of earth occur in high speed due to easily movement from place to place.
Answer:
asteroids are made of metals or rocky materials while comets are made up of ice
Explanation:
Answer:
They have small crystals.
Explanation:
Extrusive igneous rocks form when lava reaches the Earth's surface a volcano and cools quickly. Most extrusive or volcanic rocks have small crystals. Examples include basalt, rhyolite, andesite, and obsidian. Intrusive, or plutonic, igneous rocks form when magma cools slowly below the Earth's surface.