The Topic is Coal Production. What trend would you predict for the next ten years for each region? Western Interior and Appalachian

What is earths lithospheric plates interact at

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area