UNIT 4 RW& LS

A difficult time

• urgent

• scarce

• crisis

• essential

Very important

• severe

• average

• scarce

• essential

very serious or bad

• impact

• decline

• severe

• average

protecting something carefully

• conservation

• decline

• agriculture

• distribute

having things that are different from each other

• stable

• diverse

• informed

• reduce

To have a lot of experience

• average

• experienced

• informed

• urgent

individual

• a lot of people

• a single person

• two people

• too many people

reduce

• to make less

• to give out

• depend on it

• important

to become less

• preserve

• investigate

• increase

• decline

For sure, no doubt

• eventually

• extremely

• definitely

• effciently