Recent evidence from polar ice core analysis shows that, until now, carbon dioxide levels have never exceeded ________ ppm in the last 800,000 years
A) 300 B) 25 C) 200 D) 500 E) 1000
A
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Which of the following is a product of the conflicting processes driven by Earth's internal and external
heat sources? a. wind b. soil c. earthquakes d. sleet e. gravity
Earth's concentric layer that has the largest volume is the ____________________
Fill in the blank(s) with correct word
A coyote can alter its diet to match seasonal abundance of plants, fruits, or small animals, and would therefore be considered ________
A) density independent and resource-neutral B) an organism with a type II survivorship curve C) an endemic, able to be flexible D) a specialist, able to specialize on whatever is available at the time E) a generalist, able to be flexible
A gas under constant temperature will ________ in volume when the pressure is ________.
A. decrease; decreased B. decrease; increased C. keep the same volume regardless of pressure D. increase; increased