During the light-dependent reaction of photosynthesis, light energy is converted into which form of energy? chemical
mechanical
thermal
electrical

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )

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?