full transcript

From the Ted Talk by Triona McGrath: How pollution is changing the ocean's chemistry

Unscramble the Blue Letters

Now there was a natural acidification event millions of years ago, which was much slower than what we're seeing today. And this coincided with a mass extinction of many marine sciepes. So is that what we're hedaed for? Well, maybe. Studies are showing some species are actually doing quite well but many are swnhoig a negative response. One of the big concenrs is as ocean aitidcy increases, the concentration of crnatobae ions in seawater decrease. Now these ions are basically the building blocks for many marine species to make their shells, for example crabs or mussels, oysters.

Open Cloze

Now there was a natural acidification event millions of years ago, which was much slower than what we're seeing today. And this coincided with a mass extinction of many marine _______. So is that what we're ______ for? Well, maybe. Studies are showing some species are actually doing quite well but many are _______ a negative response. One of the big ________ is as ocean _______ increases, the concentration of _________ ions in seawater decrease. Now these ions are basically the building blocks for many marine species to make their shells, for example crabs or mussels, oysters.

Solution

  1. species
  2. headed
  3. showing
  4. carbonate
  5. concerns
  6. acidity

Original Text

Now there was a natural acidification event millions of years ago, which was much slower than what we're seeing today. And this coincided with a mass extinction of many marine species. So is that what we're headed for? Well, maybe. Studies are showing some species are actually doing quite well but many are showing a negative response. One of the big concerns is as ocean acidity increases, the concentration of carbonate ions in seawater decrease. Now these ions are basically the building blocks for many marine species to make their shells, for example crabs or mussels, oysters.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
carbon dioxide 11
ocean acidification 7
ocean acidity 6
human activities 3
climate change 3
marine life 3
carbonate ions 3
called ocean 2
seawater ph 2
basically means 2
monitoring ocean 2
increasing concentrations 2
marine species 2
coral structure 2
coral reefs 2
food source 2
completely dissolved 2
entire ocean 2

ngrams of length 3

collocation frequency
monitoring ocean acidification 2

Important Words

  1. acidification
  2. acidity
  3. basically
  4. big
  5. blocks
  6. building
  7. carbonate
  8. coincided
  9. concentration
  10. concerns
  11. crabs
  12. decrease
  13. event
  14. extinction
  15. headed
  16. increases
  17. ions
  18. marine
  19. mass
  20. millions
  21. mussels
  22. natural
  23. negative
  24. ocean
  25. oysters
  26. response
  27. seawater
  28. shells
  29. showing
  30. slower
  31. species
  32. studies
  33. today
  34. years