Which of the following is a key process in the nitrogen cycle?

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

When her rct is completed, julissa will see a/an to get a bridge made to close the space. a. prosthodontist b. endodontist c. orthodontist d. oral surgeon

An aptitude test measures all of the following except a. numerical ability b. abstract reasoning skills c. prior subject knowledge d. perceptual accuracy