13. 1 propose to study the relationship
between self-esteem and reading skill levels
among students at clairmont high school. at
clairmont, about 1 4 percent of the student
body are seniors, 24 percent are juniors, 30
percent are sophomores, and 32 percent are
freshmen. what kind of sampling approach
will i be most likely to use?

If a balloon is taken outside on a very cold day, what will occur?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.