Which is not a property of a mineral?

a. cleavage

b. diffraction

c. hardness

d. luster

Choose all the answers that apply. Which of the following are types of changes that can happen in the rock cycle? -igneous to sedimentary -metamorphic to sedimentary -igneous to metamorphic -sedimentary to metamorphic -metamorphic to metamorphic

Neon is a non-reactive gas. Why is that?

Our eyes detect light that lies only within a small region of the electromagnetic spectrum. This region is called visible light.

The Geologic Time Scale divides Earth's history into blocks of time with each block separated by important events, such as the disappearance of a species of fossil from the rock record. True False

Bacteria that are found in soil and can convert nitrogen into a form plants can use is known as a. Nitrogen formation b. Nitrogen evaporation c. Nitrogen condensation d. Nitrogen fixation

The sudden death of brain cells when their blood supply is interrupted is called

In a population of giraffes, dark brown spots are the result of a homozygous recessive condition. if the frequency of the allele for this condition is 0.

What is the purpose of your answer for question #1? A) can only move substance into the cell with the use of ATP B) is only used to remove large waste products from the cell C) are specifically meant to carry the smallest ions in and out of the cell

The organisms that produced the oxygen gas in Earth's early atmosphere were

Name three characteristics of gas giants that make them different from terrestrial planets.