water pollution is the addition of harmful substances to water. some of these substances are found at home. what household chemicals might be harmful if not disposed of properly?

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?