Global warming: it increases heat-trapping in Earth’s atmosphere and causes ice to melt and sea level will rise.
Fresh water : about 1.1 billion people worldwide lack access to water.
Tourism : it affects the security of many countries and threatens the life of safe people
C-
A: Have you been to Stratford-upon-Avon?
B: Yes, I have.
A: When were you there?
B: I was there last summer.
A: Did you see Shakespeare’s house?
B: Yes, I did.
A: Have you been to a traditional British restaurant?
B: Yes, I have.
A: When were you there?
B: I was there last weekend.
A: Did you eat fish and chips?
B: Yes, I did.
A: Have you been to a cricket field?
B: Yes, I have.
A: When were you there?
B: I was there Friday.
A: Did you watch a game of cricket?
B: Yes, I did.
