What mineral property that is very easy to observe but is one of the most unreliable to use for identification?

a) luster
b) color
c) hardness
d) streak
e) cleavage

Which represents a negative impact of technology

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body