you decide to halve the time you spend in the shower each day and to turn off the water while you’re brushing your teeth and washing your face at the sink. Evaluate the effect that these actions might have onto different aspects of the water cycle if every person in your neighborhood also performed them.

Without stratospheric ozone, which of the following would most likely occur? i. smog over major cities would be greatly reduced. ii. farms would produce surplus crops because of increased photosynthesis. iii. uv radiation would damage phytoplankton and reduce populations of aquatic consumers. i only ii only iii only i and ii i and iii