In a convection current, as the temperature of a fluid increases, what property of the fluid decreases? density
energy
particle size
particle speed

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Which of the following is an example of motion in two dimensions?