Which of these is an advantage of shade-grown coffee beans? A. Farmers harvest fruit from the forest trees on shade-grown coffee
farms.
B. Shade-grown coffee trees produce more expensive coffee
products.
C. Farmers completely replace tropical rain forests with shade-grown
coffee farms.
D. Shade-grown coffee trees produce fewer coffee beans per plant.

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

How air particles exert a pressure on the inside of the balloon

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?