Answer:
III only
Explanation:
The ozone layer is extremely important for the living organisms on Earth. It is a layer that manages to stop big portion of the UV radiation from reaching the surface of the Earth, thus minimizing its negative effects, and only letting enough of it to be useful for the living organisms. If the ozone layer is removed though, then the UV radiation will be so high that most of the living organisms on land would die out because they can not stand such high levels of UV radiation. The marine organisms will also be badly effected, and the majority of them will also die out because of too much radiation, thus making enormous damage to the life on the planet.
Everybody solves things differently. For me, I find that by writing everything down in my agenda, it helps me organize my thoughts and I'm able to visually see what assignment(s) are due soon.
Since your history exam is coming up, I would highly suggest you to study a bit each day. It's a bit of a stretch since May isn't even here yet, but it's better to start early.
Once again, although May isn't here yet, I would suggest working on whatever is due in that month. Believe me, doing it last minute is seriously so stressful and you'll regret it. (I'm saying this from experience.)
Just remember to give yourself little breaks and be sure to have enough sleep! It's fine if there will be times where you find yourself staying up the whole night just to get your work done. But, don't do it often as that is not good for your health.
Some tips for when you find yourself getting stressed out while working. I heard that tea, specifically Chamomile tea, helps reduce stress. Perhaps listening to music or taking a walk outside will help.
I hope my tips help you at least a bit.
Color imagery helps the reader make connections with things in their everyday life and gives a stronger visualization.