Which of the following statements best describes the process of photosynthesis? A) Carbon dioxide and water combine to form glucose and oxygen.

B) Carbon dioxide and glucose combine to produce energy and water.

c) Carbon dioxide, glucose, and water are released to produce energy

D)Carbon dioxide and water are released when glucose and oxygen combine.

Two changes are described below. a green banana turns yellow and ripens. a layer of rust forms on an iron nail. which statement is true about the two changes? a) both are chemical changes because new substances are formed. b) both are physical changes because only the physical state of the substances change. c) a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. d) a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.