In areas where existing ecosystems have been disturbed or destroyed, secondary succession can occur True o false

An object has a weight of 500 on earth what is the mass of this object

The softest and hardest minerals are: softest hardest

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?