Emily is studying how a person's breathing rate is affected by aerobic and anaerobic exercise. To do this, she measures the breathing rate of her test subject while the subject engages in 10 minutes of aerobic exercise. She then measures the breathing rate of her test subject while the subject engages in 10 minutes of anaerobic exercise. Which of the following graphs would be best for Emily to use to display the data she collects?
A.
a bar graph
B.
a single line graph
C.
a double line graph
D.
a circle graph

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

c is the answer. hope this

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.