Lava is magma that has emerged from a volcano. What changes after it emerges? Select all correct answers.

(A.) Lava is no longer insulated by the Earth.

(B.) Lava is under more pressure than magma.

(C.) Magma is under more pressure than lava.

(D.) Lava has been exposed to oxygen.

Does the sun release radiant energy?

Match the description of each organism to the appropriate category

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?