The air we breathe The 15 questions of lesson 33 «The air we breathe» of the chemistry course of Mova's primary school with their options, 83 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: the lesson at school .
t1 Ava: "the glass is empty, there's nothing in it". What's true? right ✓ · ★★ t2 If crisps were packed with ordinary air instead of nitrogen, what might happen? wrong ✗ · ★★ t3 "carbon dioxide's such a tiny bit of the air, it can't matter, innit". What's true? wrong ✗ · ★★ t4 Nan says she bought three houseplants "to clean all the air in the flat". What's true? wrong ✗ · ★★ t5 A cartoon climber on Everest says there's no air up there at all. What's true? right ✓ · ★★ t6 "all that air on top of me weighs loads? then why don't I get squashed lol" right ✓ · ★★ t7 "ozone hole's done, we wrecked it forever". What's been reported? right ✓ · ★★ t8 Why is the air clearer in many cities now than fifty years ago? wrong ✗ · ★★ t9 Your hay-fever mate sneezes all spring. "it's the air", he moans. What's in the air? wrong ✗ · ★★ t10 If all the tiny plants in the sea died, what would happen? wrong ✗ · ★★ t11 In an old diving bell, people kept dry under water. How? wrong ✗ · ★★ e1 Identify the gas which constitutes the greater part of the atmosphere. right ✓ · exam e2 Which of the following statements most accurately characterises the function of the ozone layer? wrong ✗ · exam e3 It is given that the combustion of coal, oil and gas releases carbon dioxide. Select the consequence consistent with the established facts. wrong ✗ · exam e4 Ascertain the reason for which mountaineers at very high altitude frequently carry oxygen. right ✓ · exam ← previous
Recycling: giving materials a second life
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Water: the most amazing liquid
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