If Dave wants to use a technology that does not directly impact climate, which of the above technologies should he consider? OA. solar, wind, and natural gas
OB. hydroelectric, wind, and solar
OC. coal, wind, and natural gas
OD. hydroelectric, coal, and solar

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

im not in connections yet but i might can you some questions. what grade are you in?

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation:

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