completado las 60 lecciones y
los 2 tests parciales del curso.
los 120 días como
Pollution and waste
The purpose of this activity is to familiarise you with the vocabulary
needed in a discussion of this topic and on your attitudes to pollution and
waste. Look carefully at the
pictures and try to choose the correct words
from the menus. Then check the
General ecology (I)
Match the following definitions with the phrases or
expressions on the
second column choosing the appropriate alternatives from the menus.
Then check the answers.
Warming that results when solar radiation is
trapped by the atmosphere
An area near the poles which should protect
life on Earth from the effects of ultraviolet rays, but that is seasonally depleted
Energy derived from the heat in the interior of