What are the states of matter?

solid, liquid, gas, plasma

atom, molecule, compound

solid, liquid, compound, element

solid, liquid, gas, steam

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

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?