What is ozone? How and where is it formed in the atmosphere?

Which planet might best be described as a large dirty ice ball?

What is the mass of an object with a momentum of 250 kgm/s and a velocity of 5 m/s?

Discribe what a conductor does

The type of graph used to show how a part of something relates to the whole is which of the following

A chlorine atom reacts with a sodium atom to form sodium chloride, NaCl A chlorine atom can also react with another chlonne atom to form a chlorine molecule, Cl2, Which statement BEST explains the behavior of chlorine in these two reactions?

Why is it important to develop alternative energy sources

Which of the following subatomic particles does not have a charge? A.) electron B.) proton C.) neutron D.) positron

How do we use light in space?

What units are used for gravitational potential energy? Write the name, not the symbol.

A 7.5 kg block is placed on a table. If it's bottom surface area is 0.6m2, how much pressure does the block exert on the tabletop? A. 376.5 Pa B. 73.5 Pa C. 226.5 Pa D. 122.5 Pa