In 1895, Wilhelm Rontgen, a German Physicist discovered the x-ray.
My guess is D. Usually, animals try to scare an assailant and attack as a last resort.
your heart speeds up so more blood can reach your muscles. Muscles use oxygen to create the stuff needed for the work in exercise.your heart rate returns to its normal or resting rate fairly quickly
Answer: The answer is B. orienteering and this is the right answer :)
Explanation:
