2. the water on earth came from ancient a. Volcanic activity
b. Collisions with comets that contained ice
c. Both answers a and b
d. None of the above

3. How much of the earth’s water is held in the oceans?
a. 25%
b. 50%
c. 75%
d. Almost 100%

4. Which of the following is a solvent?
a. Rocks
b. Water
c. Ice
d. Steam

5. Water enters the ocean from
a. Rivers that empty into the ocean
b. Rain
c. Groundwater
d. All of the above

6. The major component of salt water is
a. Water
b. Salt
c. Other minerals
d. None of the above

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Brainliest ! is slowing down a car an example of acceleration? explain. - explain correctly