Which statement explains the impact that ozone depletion has had on the earth? . a) it has increased surface levels of ultraviolet light.. b) it has decreased the production of ultraviolet light.. c) it has increased the production of ultraviolet light.. d) it has decreased surface levels of ultraviolet light.

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.