A local grocery store sells frozen fish sticks in packages of 18. If the cost for a package of 18 frozen fish sticks is $5.58, what is the cost per frozen fish stick?

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