Lesson 5.9.1.3
5.9.1.3 How oxygen increased Quiz: AQA Combined Science, Unit 16
20 questions
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Lesson 5.9.1.3, How oxygen increased: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 16: Chemistry of the atmosphere, written with Revision Ninja.
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The 20 questions
-
Which process produced most of the oxygen in the Earth's atmosphere?
- Combustion
- Photosynthesis
- Respiration
- Volcanic outgassing
-
Roughly when did algae first produce oxygen on Earth?
- 2.7 billion years ago
- 500 thousand years ago
- 1.0 million years ago
- 4.6 billion years ago
-
Which chemical equation correctly summarises the process of photosynthesis that released oxygen?
- Methane plus oxygen
- Nitrogen plus water
- Oxygen plus glucose
- Carbon dioxide plus water
-
Over approximately how long did the atmospheric oxygen percentage gradually rise?
- Fifty million years
- One billion years
- One hundred years
- Ten thousand years
-
The gradual increase in atmospheric oxygen eventually enabled the evolution of what?
- Viruses
- Bacteria
- Fungi
- Animals
-
Which organisms were the first oxygen producers in this account?
- Fungi
- Algae
- Early fish
- Land animals
-
What is the correct product of photosynthesis released into the air?
- Methane
- Carbon dioxide
- Nitrogen
- Oxygen
-
What gas do aquatic plants produce during daylight hours?
- Ammonia
- Oxygen
- Helium
- Hydrogen
-
A water plant in bright sunlight gives off gas bubbles. Which gas are the bubbles most likely to be?
- Methane
- Nitrogen dioxide
- Carbon dioxide
- Oxygen
-
What happens to the oxygen level when a plant is kept in the dark?
- Rises rapidly
- Falls slightly
- Doubles instantly
- Remains completely unchanged
-
Which organisms were the very first to produce oxygen on Earth?
- Land plants
- Algae
- Animals
- Bacteria
-
Why was a high oxygen level necessary for animal evolution?
- Transpiration
- Aerobic respiration
- Nitrogen fixation
- Photosynthesis
-
Has the percentage of oxygen in the atmosphere always been 21%?
- Yes
- Always 10%
- Always 50%
- No
-
Algae producing oxygen 2.7 billion years ago implies what was present?
- Flowering plants
- Photosynthetic life
- Land mammals
- Vertebrate animals
-
Which geological evidence indicates when oxygen first accumulated in the oceans?
- Banded iron formations
- Granite rock layers
- Sandstone deposits
- Basalt lava flows
-
If oxygen rose over one billion years after starting at 2.7 billion years ago, when was animal evolution enabled?
- 2.7 billion years ago
- 3.7 billion years ago
- 0.7 billion years ago
- 1.7 billion years ago
-
What condition allows an atmospheric gas to build up over time?
- Production equals consumption
- Production exceeds consumption
- Consumption exceeds production
- Zero production occurs
-
What form of energy is stored in the products of photosynthesis?
- Kinetic energy
- Chemical energy
- Thermal energy
- Nuclear energy
-
Which organisms were the primary source of early atmospheric oxygen?
- Algae and plants
- Fish and amphibians
- Bacteria and viruses
- Animals and fungi
-
What is the primary role of oxygen in animal respiration?
- Releasing energy
- Building proteins
- Cooling the body
- Absorbing sunlight
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