Aresearcher wishes to stop an enzyme reaction in a cell because the products can become toxic. speculate on an approach that the researcher might use to stop the reaction. be sure to describe how this approach would work and identify any pros or cons it might have to the organism.

Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true

Eutrophication caused by human nutrient pollution.

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?