What is the greatest possible length of a side of a triangle whose perimeter is 1000.

How did different parts of the united states feel about slavery

What percentage of the earth's water is available for use by living things?

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.