Write a report on the advantages of hydroponic gardening (growing plants in water) versus growing plants in soil. The report must be a paragraph, at least six sentences, and contain a minimum of two advantages.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers