Okay. So, it is definitely NOT A or D, because you do need to come to a complete stop. That's the law and you never know when a car can just randomly come at a very fast pace. You don't only stop when pedestrians come, so C is out as well. B is the only one that even makes sense, because you have to stop at a stop sign, no matter what the situation is. It's the law. The answer is B.
The chemical
chlorophyll enables a process called
photosynthesis that is the ultimate source of all food energy on earth. this is correct. It is not sunlight like the previous answer someone had.
Answer:
an app where you facetime random people
Explanation:
Answer: B.
When a person is working hard through cardiorespiratory exercise and conditioning, his resting heart rate decreases because each beat sends a bigger burst of blood and fewer beats of the heart is needed.
Moreover, it is recommended that after a chronic cardio training, the person must walk for a while to let the heart recover to have normal heart beat.
Over time, improved cardiovascular fitness improves resting and recovery heart rates.