On a hot day, the upstairs rooms in a house are usually hotter than the downstairs rooms. Why? A. Cool air is less dense than warm air. B. Warm air rises and cool air sinks. C. The upstairs rooms are closer to the sun. D. Heat rises.

What does the shadow used by sundial to tell time look like in the morning, midday and evening

Provide evidence to reject this statement, "Human phenotypes are usually a clear cut either situation"

What are two types of organic sedimentary rock?

Which of these is not true about jovian planets? a. relatively large size b. relatively low density c. primarily rocky, metallic compositions d. relatively large number of moons?

write two paragraphs in your own words that compare and contrast how you (humans) communicate with sound and how dolphins and other whales use sound in water.

Which best defines a diploid cell during meiosis? a cell that has double the number of chromosomes as the parent cell a cell that has half the number of chromosomes as the parent cell a cell that has double the number of chromosomes as the daughter

What is the best definitionof magnetosphere? a. a magnetosphere is a magnetic field around earth. b. a magnetosphere is the groups of atoms that are lined up inside a magnet. c.

True or false: tertiary sources can draw from, or summarize, a secondary source.

Differentiate between light and electron microscopy.

A physician orders a general health panel, all tests except a creatinine, including cbc with automated differential. what cpt® code (s) is/are reported?