Answer:
red if it has oxygen, but blue when it doesnt
Explanation:
More confident in the results
the others options could be valid but there is the need for more information to conclude in another hand, more confident in results is the most general case, if the repeating test brings back the same results.
The velocity a rocket must reach to establish an orbit around Earth is called. a.thrust velocity.
Answer:
Measuring heart rate and noting blood pressure is the answer.
Explanation: