What Mineral Property that is a description of how resistant a mineral is to being scratched?

A) Luster

B) Color

C) Hardness

D) Streak

E) Cleavage

You can float a paperclip on top of water if you very carefully place it flat on the water surface because of the molecular skin created by the interaction of air molecules with the top layer of water molecules on the surface. this is called A.

The environment and the economy are linked. If some of our natural resources were no longer available, this would negatively effect our economy. True or False

If you will investigate the factor affecting the rusting of iron, what materials/equipment do you need?

What similarities, if any, do you think exist between a human's reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?

Why do i look more attractive in the mirror reddit?

Example to illustrate the internal complexity of cells

What is the source of the pressure that has caused coyotes, which were once essentially diurnal, to adjust to a more nocturnal behavior?

Ants carry dead ants out of the anthill and dump them on a "trash pile." If a live ant is painted with a chemical from dead ants, other ants repeatedly carry it, kicking and struggling, to the trash pile, until the substance wears off.

What is responsible for the structures and functions of organisms

The term 'prehistory' refers to the time before writing was invented. true or false?