Question

Complete the sentences with the discourse markers, as adequate:
and - but - by - from - like - when - where
a. carbon dioxide is produced__________when_____ we burn gasoline in our cars
b. pollution is created_____by_____human beings
c. the pollution that causing global warming comes______and____human activity
d. those are different names, ______but______ they mean the same thing
e. we cut down forests ____and_______ destroy coral reefs
f. we spoil and waste precious resources ______but____ the topsoil

Answer 1

Explicação:

When

b- By

c- From

d- But

e- And

f- From