Which quantity describes how tightly packed matter is inside of an object?

How does the viscosity of magma change as magma cools?

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.