(this is earth science) light reflects evenly off a galena crystal, giving its surface a mirror like appearance.
1.Cleavage
2.luster
3.shape
4.hardness
5.streak
6. transparency
which one is it?

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called