Answer:
C and D
Ocean acidity was greater in 2010 than in 2000.
Heart disease is the major cause of death in the United States.
Explanation:
just took the question and those are the only two that are correct.
Acceleration is a little more complicated. It is defined as the rate of change of the object's velocity over its change in time. ... Or, if the acceleration is negative, it's called deceleration and describes something slowing down. For something to speed up or slow down, it has to have a certain change in velocity
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.
A stationary front is the least likely to be associated with rainfall.
