Which activity is an example of a chemical change?

a. sugar dissolving in water

b. water evaporating into water wapor

c. lighting a match

d. freezing water

Which filter is used primarily to protect the lens? a: polarizing b: macro c: haze d: nd

According to the law of conservation of mass does the total number of atoms change during aerobic respiration

Which of the following is a way humans have impacted the rainforest, but not the tundra?

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

What type of system is earth? A. Closed B. Open C. Connected D. Isolated

Solve the problem. The Bay area of California was shaken by an earthquake on October 17, 1989. The epicenter was located at Loma Prieta. The diameter of the earthquake's horizontal waves that shocked the area measured about 120 miles.

Lightning is an example of matter in a liquid state. True False i am trying recheck my answers before i do i finish my home work so if i post a lot of questions i am srry ... ?

You want to place a mirror at a blind turn on the staircase in your house. Which would be best suited for this purpose? a. flat mirror b. plane mirror c. convex mirror d. concave mirror

Which will have the greatest effect on power consumption A.) add more circuit brakes and fuses B.) turn on all electric devices in a circuit C.) turn on only the electrical devices that use the most watts D.

13. Which best summarizes the change in number and size of microcontinents during the Proterozoic? a. the number of microcontinents increased and the size increased b. the number of microcontinents increased and the size decreased c.