D is the rightful answer for this question. Prolonged stress can create and even promote bitter diseases such as cold, flu, and heart disease.
Try not to go out as much as possible. If you go out, you must wear a mask or other things. When you go home, you must disinfect it. You can use alcohol spray or hand sanitizer.
Answer:
1) If a pesticide was used to kill the grasshoppers and the caterpillars, then the frogs should be fine, because the pesticide isn't made to effect them; also, unless their diet was only of grasshoppers and caterpillars, then the frogs would not starve.
2) Two human activities that can impact the ecosystem are, pollution, and deforestation. Pollution, because it can harm animals, but against popular (but unscientific) belief, doesn't cause climate change. Deforestation also harms animals, and also causes for some trees to have to produce more oxygen than before.
3)Life on earth could not exist on earth without plants and decomposers because there would be no oxygen left on earth for creatures to breathe, and there would be no nutrients to keep the earth alive.
1.Use a forehand grip.
2.Stand sideways with your non-racket hand facing the net
3.Shift your weight to your rear foot, bend your elbow holding the racket and prepare to hit the incoming shuttle.
4.As you hit the shuttle, straighten your elbow, tapping the shuttle as you hit it. Keep in mind the angle of the racket which will determine the shuttle's direction.
5.Do a follow through and shift your weight from the rear to the front foot.
