greenhouse e (a)   (Write the whole missing word, don't use capital letters.)

b (a)   extinct (Write the whole missing word, don't use capital letters.)

air/water p (a)   (Write the whole missing word, don't use capital letters.)

environmentally f (a)   (Write the whole missing word, don't use capital letters.)

endangered s (a)   (Write the whole missing word, don't use capital letters.)

r (a)   energy (Write the whole missing word, don't use capital letters.)

f (a)   fuels (Write the whole missing word, don't use capital letters.)

wind/water/ solar p (a)   (Write the whole missing word, don't use capital letters.)

unleaded p (a)   (Write the whole missing word, don't use capital letters.)

global w (a)   (Write the whole missing word, don't use capital letters.)

i (a)   caps (Write the whole missing word, don't use capital letters.)

surface t (a)   (Write the whole missing word, don't use capital letters.)

c (a)   dioxide (Write the whole missing word, don't use capital letters.)

a (a)   rain (Write the whole missing word, don't use capital letters.)

rain f (a)   (Write the whole missing word, don't use capital letters.)

c (a)   emissions (Write the whole missing word, don't use capital letters.)

g (a)   gases (Write the whole missing word, don't use capital letters.)

p (a)   up litter (Write the whole missing word, don't use capital letters.)

s (a)   rubbish (Write the whole missing word, don't use capital letters.)