Order these events from oldest (1) to most recent (4). Dense melted material sank to form the core.

Earth’s gravity captured gases to form the first atmosphere.

Dust, rock, and ice were pulled together by gravity.

Less dense material cooled, hardened, and formed the crust.

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents