cuales son los ojetivos de un trabajo escrito que tarte sobre el origen de la vida por favor alguien q me explique que es para mañana

Which of the following typically characterizes a tropical rainforests

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.