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Course: Alhussan Biology — Stage 7
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Alhussan Biology — Stage 7

Chapter 1: Classification and Life

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Chapter 2: Cells and Organisation

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Chapter 3: Microorganisms and Decomposers

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Chapter 4: The Physical Environment and Water Cycle

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Quiz

4.3 Global warming and the water cycle — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Which term matches this definition? “The ocean surface rising as ice melts and water warms.”
Potometer
Sea level rise
Decomposer
Dichotomous key
2.
Arctic sea ice area in September. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 1
"Ice area (million km²)" stays the same
"Ice area (million km²)" rises to a peak at 1980, then falls
"Ice area (million km²)" decreases as "Year" increases
"Ice area (million km²)" increases as "Year" increases
3.
Which is the correct definition of “Methane”?
A line along which samples are taken.
A greenhouse gas from cattle, rice paddies and landfill.
Similar cells working together.
An area with very little water.
4.
Carbon dioxide in the atmosphere. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
5.
Which statement is correct?
Most of Earth's water is fresh.
Oxygen is a greenhouse gas.
Burning or rotting wood releases more carbon dioxide.
Burning fossil fuels releases oxygen.
6.
Carbon dioxide in the atmosphere. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 3
"CO₂ (ppm)" decreases as "Year" increases
"CO₂ (ppm)" stays the same
"CO₂ (ppm)" increases as "Year" increases
"CO₂ (ppm)" rises to a peak at 2020, then falls
7.
Sources of methane from human activity. What is the total of all the values?
Dr Dabour Hub Academy - figure 4
40
111
100
89
8.
Arctic sea ice area in September. Calculate the percentage change in "Ice area (million km²)" from 1980 to 2020.
Dr Dabour Hub Academy - figure 5
50%
−50%
−200%
−100%
9.
Global average temperature. By how much does "Temperature (°C)" change between 1880 and 2020?
Dr Dabour Hub Academy - figure 6
28.5
1.1
14.8
2.1
10.
Which statement is NOT correct?
Thermometer records cover more than a century.
About 2.5% of Earth's water is fresh.
Deforestation reduces carbon dioxide.
Global average temperature has risen by roughly 1 °C.
11.
Carbon dioxide in the atmosphere. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
12.
Which term matches this definition? “Gases trapping heat so Earth stays warm enough for life.”
Habitat
Greenhouse gas
Community
Greenhouse effect
13.
Sources of methane from human activity. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
14.
Which is evidence of global warming?
Plants flower later
Sea level is falling
Glaciers and Arctic sea ice are shrinking
Fewer greenhouse gases
15.
Sources of methane from human activity. What is the value for Fossil fuels?
Dr Dabour Hub Academy - figure 9
35
5
40
20
16.
CO₂ rose from 280 ppm to 414 ppm. Calculate the percentage increase.
148%
48%
32%
134%
17.
Which human activity releases methane?
Recycling paper
Cattle farming and rice paddies
Planting trees
Using solar panels
18.
Which is the correct definition of “Greenhouse gas”?
The rise in average temperature caused by extra greenhouse gases.
A gas such as carbon dioxide that traps heat in the atmosphere.
Water vapour cooling to form liquid droplets.
A microorganism that causes disease.
19.
Which statement is correct?
Methane comes mainly from volcanoes and the Sun.
Global temperature has risen 10 °C.
Sea level is rising.
The greenhouse effect is entirely harmful.
20.
The greenhouse effect raises Earth from -18 °C to 14 °C. By how many degrees?
18 °C
14°C
−4°C
32°C
21.
Which term matches this definition? “The rise in average temperature caused by extra greenhouse gases.”
Ecosystem
Transect
Global warming
Organ
22.
Carbon dioxide in the atmosphere. By how much does "CO₂ (ppm)" change between 1960 and 2020?
Dr Dabour Hub Academy - figure 10
120
412
728
96
23.
Which term matches this definition? “Long-term changes in weather patterns.”
Sea level rise
Greenhouse gas
Virus
Climate change
24.
Carbon dioxide in the atmosphere. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
25.
Which statement is correct?
Plants now flower earlier.
Deforestation reduces carbon dioxide.
Most of Earth's water is fresh.
Sea levels are falling.
26.
Which is the correct definition of “Sea level rise”?
An organism that breaks down dead material.
Water vapour cooling to form liquid droplets.
Where an organism lives.
The ocean surface rising as ice melts and water warms.
27.
Sea ice fell from 8.0 to 5.0 million km². What is the percentage decrease?
3%
60%
62%
38%
28.
Arctic sea ice area in September. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
29.
Which term matches this definition? “Gases such as carbon dioxide, methane and water vapour that trap heat in the atmosphere.”
Inert gases
Greenhouse gases
Noble gases
Fuel gases
30.
Which statement is correct?
Methane comes mainly from volcanoes and the Sun.
Fewer trees remove less carbon dioxide by photosynthesis.
Sea levels are falling.
The greenhouse effect is entirely harmful.
31.
Carbon dioxide in the atmosphere. Between which two values of "Year" did "CO₂ (ppm)" change the most?
Dr Dabour Hub Academy - figure 13
1970 and 1980
2010 and 2020
1990 and 2000
2000 and 2010
32.
About 2.5% of Earth's water is fresh and 70% of that is ice. What percentage of all water is fresh-water ice?
72.50%
175.00%
67.50%
1.75%
33.
About 2.5% of Earth's water is fresh and 68.7% of that is ice. What percentage of all water is fresh-water ice?
171.75%
71.20%
66.20%
1.72%
34.
Sources of methane from human activity. Which has the greatest value?
Dr Dabour Hub Academy - figure 14
Farming
Fossil fuels
Landfill
Other
35.
About ____% of Earth's water is fresh.
97
50
2.5
25
36.
Sea level is ____.
frozen
falling
unchanged
rising
37.
Plants now flower ____.
twice as late
never
later
earlier
38.
Heat radiated from Earth is partly trapped by ____.
the Moon
clouds only
space
greenhouse gases
39.
Fewer trees remove less carbon dioxide by ____.
decay
photosynthesis
excretion
respiration
40.
Burning fossil fuels produces ____.
carbon dioxide
oxygen
helium
nitrogen
41.
Glaciers and Arctic sea ice are ____.
growing
shrinking
moving south
unchanged
42.
Burning ____ fuels in power stations and vehicles releases carbon dioxide.
fossil
nuclear
solar
wind
43.
Ice cores show past ____ levels.
animal numbers
rainfall only
wind
carbon dioxide
44.
Most water on Earth is ____.
salty
fresh
underground
frozen
45.
True or false? Plants now flower earlier.
True
False
46.
True or false? Glaciers and Arctic sea ice are shrinking.
True
False
47.
True or false? Global temperature has risen 10 °C.
True
False
48.
True or false? Most of Earth's water is fresh.
True
False
49.
True or false? Methane comes mainly from volcanoes and the Sun.
True
False
50.
True or false? The greenhouse effect is entirely harmful.
True
False
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Part of Chapter 4: The Physical Environment and Water Cycle — see every lesson and quiz in this unit.
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