Question 33 saved

volcanic rock has often been found early in the rock record but less frequently in later rock layers. what does this suggest to scientists about early earth?

question 33 options:

1)

volcanic activity is the same today as it was early in earth's history.

2)

volcanic rock is more easily preserved than other kinds of rock.

3)

volcanic activity was more common in the past than it is today.

4)

volcanic rock is easier to find.

What is the oxidation state of each individual carbon atom in c2o42−?

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c. vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false

The solubility of barium nitrate is 9.02 g/100 g h2o at 20°c. a 15.2 g sample of barium nitrate is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated? a. unsaturated b. saturated c. supersaturated