Meaning: "bleaching" means when corals lose their colour.

Wrong options:

• bleeching: It has "e" where the word has "a". Check the letters: "bleaching". A small spelling mistake loses the mark.
• bleach: "bleach" is missing the ending. The speaker says "bleaching", with "ing" at the end.

Correct answer: acidification

Explanation: On the recording you hear "is causing ocean acidification, making". The word ends in tion, listen for that ending.

Meaning: "acidification" means the ocean becoming more acidic.

Wrong options:

• acidifcation: It leaves out the "i". The right spelling is "acidification". Every letter must be correct to get the mark.
• acidic: "acidic" is a close word, but it ends in "c". The speaker says "acidification", which ends in "fication".

Correct answer: ecosystems

Explanation: Listen again to "disrupts marine ecosystems but also". The word is more than one, do not forget the s.

Meaning: "ecosystems" means groups of living things and their environment.

Wrong options:

• ecosytems: It leaves out the "s". The right spelling is "ecosystems". Every letter must be correct to get the mark.
• ecosystem: "ecosystem" has no "s" at the end. The speaker says "ecosystems", so write the "s".

Correct answer: fishing

Explanation: Here you hear "sustainable fishing practices". The sentence needs a word for an activity.

Meaning: "fishing" means catching fish for food or work.

Wrong options:

• fising: It leaves out the "h". The right spelling is "fishing". Every letter must be correct to get the mark.
• fish: "fish" is missing the ending. The speaker says "fishing", with "ing" at the end.