List and describe two ways currents affect life on earth

Is the study of the muscle movement in the human body and example of biology or physics

The chemical reaction of oxygen with other substances is called A. erosion. B. oxidation. C. exfoliation. D. acidification.

An unknown substance has a mass of 15 g and a volume of 4 cm3. Calculate the density of the unknown substance.

Does the moon have an atmoshphere?

After your experiment is complete and all the data has been compiled, which would best describe a reasonable conclusion? A. My conclusion answers my hypothesis, therefore, it had to be true. B.

O'Malley is riding on a bus which is moving at 10 m/s, and he throws a ball which he observes to be moving at 10 m/s relative to him in the direction of motion of the bus. What speed will Ophelia observe the ball to have?

Part 1. A girl leaves a history classroom and walks 10 meters north to a drinking fountain. Then she turns and walks 30 meters south to an art classroom. What is the girl's total distance traveled? Part 2. Using the information above from Part 1.

Which of the following is an example of a physical change but not a chemical change? A) The log gives off heat and light as it burns B) A tree stores energy from the sun in its fruit C) A penny lost in the grass slowly changes color D) A water pipe

Land masses that move on Earth are called: a. Continents b. Tectonic continents c. Tectonic plates d. Rock Masses

Will two separate 50db sounds together constitute a 100db sound explain mathematical