Roadmap B1+ Unit 8

experience

if you experience a problem, event or situation, it happens to you or affects you

storm

a period of very bad weather when there is a lot of rain or snow, strong winds, and often lightning

flood

a very large amount of water that covers an area that is usually dry

cause

to make (something) happen, especially something bad

pollution

he process of making air, water, soil, etc. dangerously dirty and not suitable for people to use, or the state of being dangerously dirty

produce

to cause (a particular result or effect)

toxic gases

a substance which is not solid or liquid, and usually cannot be seen, containing poison or caused by poisonous substances

recycle

to put (used objects or materials) through a special process so that they can be used again