Pedro is planning to model how changes in weather affect evaporation from lakes. for his second experiment, he wants to test how winds affect the evaporation rate. he places one beaker with 300 ml of water in an area away from any fans, and he places another beaker with 300 ml of water near a small fan.

what is the dependent variable in pedro's experiment?

a. volume of water
b. evaporation rate
c. temperature
d. movement of air

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Select all the correct answers. which two statements are true? a moving magnetic field creates an electric field. a constant magnetic field creates an electric field. a constant electric field creates a magnetic field. a moving electric field creates a magnetic field. resetnext