Meaning: "colleagues" means people you work with.

Wrong options:

• colegues: It leaves out the "l" and it leaves out the "a". Write "colleagues". Only the exact spelling gets the mark.
• colleges: "colleges" is a close word, but it ends in "ges". The speaker says "colleagues", which ends in "agues".

Correct answer: transition

Explanation: Listen again to "the transition from these cold". You need a word for the change from one state to another.

Meaning: "transition" means the change from cold to warm.

Wrong options:

• trasition: It leaves out the "n". Check the letters: "transition". A small spelling mistake loses the mark.
• variation: This means a difference, not the process of changing from one state to another.

Correct answer: conditions

Explanation: Here you hear "these cold conditions to warm". The word after "cold" is a word for the state or situation.

Meaning: "conditions" means the state or situation of the climate.

Wrong options:

• condtions: It leaves out the "i". Check the letters: "conditions". A small spelling mistake loses the mark.
• situations: This is a different word and does not match the exact phrase used here.

Correct answer: trapped

Explanation: The speaker says "Gases are trapped in the". You need the word with ing or ed at the end.

Meaning: "trapped" means held inside so it cannot escape.

Wrong options:

• traped: It leaves out the "p". The right spelling is "trapped". Every letter must be correct to get the mark.
• stored: This is a different word meaning put away, not held by surrounding material.

Correct answer: temperature

Explanation: You hear "the chemistry of the ice also tells us about temperature in". The sentence needs a word for how hot or cold it was.

Meaning: "temperature" means how hot or cold the polar regions were.

Wrong options:

• temprature: It leaves out the "e". Check the letters: "temperature". A small spelling mistake loses the mark.