Module 2 Planet Earth Unit 4 Earth is

Module 2 Planet Earth Unit 4 Earth is Dearer than Gold Upstream 6

Unit 4 a Earth is Dearer than Gold Suggested Answer Key (Ex. 1 a)

Suggested Answer Key (Ex. 1 b)

Answer Key (Ex. 2 a)

Answer Key (Ex. 2 b) Suggested Answer Key (Ex. 2 b)

Answer Key (Ex. 3 a)

Answer Key (Ex. 3 b)

Answer Key (Ex. 3 c)

Words in bold (Ex. 3 c) generate (v) ����� , ������ , ���� [to produce or create something] fossil fuel (phr) ����������������������� ������� ��������� [fuel such as coal or oil, that was formed over millions of years from the remains of animals or plants] renewable (adj) (������� ) ������� , ����� [that is replaced naturally or controlled carefully and can therefore be used without the risk of finishing it all] greenhouse gas (phr) ����������� [any of the gases that are thought to cause the greenhouse effect, especially carbon dioxide] global warming (n) ������ [the increase in temperature of

climate change (phr) [changes in the ���������� earth’s weather, including changes in temperature, wind patterns and rainfall, especially the increase in the temperature of the earth’s atmosphere that is caused by the increase of particular gases, especially carbon dioxide] drawback (n) ������� , ����� [a disadvantage or problem that makes something a less attractive idea] take advantage of (phr) ������� [to make use of something well] array (n) ��� , ���� [a group of people or things, especially one that is large or impressive] wind turbine (n) ���� [a type of modern windmill used for producing electricity]

rotor blade (n) ����� [a blade in a rotor assembly] unoccupied (adj) ���� [empty, with nobody living there or using it] site (n) etc ������ [a place where a building, town, was, is or will be located] objection (n) do not ����� , ����� [a reason why you like or are opposed to something; a statement about this] demand (n) something; ������ [a very firm request for something that somebody needs]

Answer Key (Ex. 4)