How can preparing for your next essay test to increase your grade on that test?

What information does a survey provide? a. an accurate description of the population surveyed b. whether there is a predictive relationship between two variables? c. whether there is a cause-and-effect relationship between two variables d. none

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

Ahummingbird travels from plant to plant to feed itself. which of the following ecosystem services does this hummingbird most likely provide? i. pollination ii. seed dispersal iii. soil preservation i only ii only iii only i and ii only ii and iii only