Explain three ways visual aids you study.

Which of the following types of stars had the smallest initial mass? which of the following types of stars had the smallest initial mass?

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii

The double-blind procedure is most for a. random assignment b. the placebo effect c. operational definitions replication d. standard deviations