Which of the following best defines a hypothesis? a. a testable statement that is capable of being supported or refuted by scientific evidence b. a well-established and highly reliable explanation of a natural phenomenon c. a scientific fact that has been tested by multiple scientists under various conditions d. a widespread opinion that cannot be tested through scientific research

Approximately what wavelength of light is best absorbed by chlorophyll a

What are the characteristics of carbon bonds? check all that apply.

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.