1. Which of the following terms is not used in the field of physics? A.Latent heat B.Nuclear fusion C.Refractive index D.Stock value
Answer: Option A Solution: The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapour in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.
