Chlorophyll reflects which of these colors?

a. red

b. blue

c. green

d. yellow

Describe the three ways heat can be transferred-radiation, conduction, and convection

What property do most metals share

Why do lighthouses use lenses?

Compare and contrast continuous spectrum and emission spectrum

What does the body do with the chemical energy of food that is not converted to the chemical energy of ATP? a. Stores it in the body's fat cells b. Converts it to carbon dioxide that is then expelled through the lungs c. Radiates it as heat d.

Element A has an electronegativity of 2.20. Element B has an electronegativity of 3.44. The bond of molecule AB is then best described as a:

Which of the following solutions would you expect not to conduct electricity?

The week of Feb. 29, 2016, PBS aired a documentary on sending humans halfway to space in the late 1950's using balloons. They filled different balloons with different gases - some with H2 and some with He. Which balloon should go higher? Why?

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.