Curriculum
Course: Alhussan Biology — Stage 9
Login

Curriculum

Alhussan Biology — Stage 9

Chapter 9: Plants and Photosynthesis

0/26

Chapter 10: Excretion in Humans

0/17

Chapter 11: Human Genetics and Development

0/24

Chapter 12: The Carbon Cycle and Climate Change

0/15

Chapter 13: Variation and Natural Selection

0/21
Quiz

9.6 The use of fertilisers — Quiz

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 50
  • Passing grade: B+
Start Quiz
1.
True or false? Each harvest removes minerals from the field.
True
False
2.
World fertiliser use over time. Which has the greatest value?
Dr Dabour Hub Academy - figure 1
1980
2020
2000
1960
3.
Oxygen in a lake after fertiliser run-off. At what value of "Week" is "Oxygen (mg/L)" greatest?
Dr Dabour Hub Academy - figure 2
6
0
2
8
4.
World fertiliser use over time. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
5.
Which is the correct definition of “Eutrophication”?
Minerals added to replace those removed by crops.
Apparatus that measures water uptake.
Excess fertiliser in water causing algal blooms and oxygen loss.
Water molecules sticking to each other.
6.
Which term matches this definition? “Water carrying fertiliser from fields into rivers.”
Osmosis
Decomposer
Run-off
De-starched plant
7.
True or false? NPK stands for nitrogen, potassium and krypton.
True
False
8.
World fertiliser use over time. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
9.
Which is the correct definition of “Carl Bosch”?
A substance that adds minerals to soil.
Mineral needed for enzymes.
The amount of crop produced.
The engineer who scaled up ammonia making.
10.
Yield rose from 3.5 to 6.5 t/ha with fertiliser. Calculate the percentage increase.
86%
30%
46%
186%
11.
Oxygen in a lake after fertiliser run-off. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
12.
Wheat yield with different amounts of nitrate fertiliser. At what value of "Fertiliser (kg/ha)" is "Yield (t/ha)" smallest?
Dr Dabour Hub Academy - figure 6
100
200
0
50
13.
True or false? Canola is used for cooking oil.
True
False
14.
Which statement is correct?
Almost 50% of people rely on food grown with artificial fertilisers.
Haber made glucose from air.
Artificial fertilisers are thousands of years old.
Harvesting adds minerals to fields.
15.
Algae cover on a lake after a fertiliser spill. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
16.
Air is about ____% nitrogen.
1
21
80
50
17.
Which statement is correct?
Plants use nitrogen gas from the air directly.
Algal blooms help plants below by giving light.
Artificial fertilisers are thousands of years old.
Most plants cannot use nitrogen from the air.
18.
World fertiliser use over time. About how many times bigger is 2020 than 1960?
Dr Dabour Hub Academy - figure 8
9.2
3.1
6.1
12.3
19.
Air is about ____% nitrogen.
1
50
20
80
20.
Which statement is NOT correct?
Air is about 80% nitrogen.
The process has helped feed the growing world population.
Fertilisers increase the yield of crops.
Fertilisers reduce crop yields.
21.
Which is the correct definition of “Fertiliser”?
Mineral ion needed to make amino acids and proteins.
Yellowing of leaves from lack of chlorophyll.
A substance that adds minerals to soil.
Movement of sugars in the phloem.
22.
Which statement is NOT correct?
Air is about 20% nitrogen.
Bacteria decaying dead plants use up oxygen.
Wheat is a staple food.
Yield rises strongly as nitrate fertiliser increases.
23.
World fertiliser use over time. What is the total of all the values?
Dr Dabour Hub Academy - figure 9
377
420
166
463
24.
Lake oxygen fell from 10 mg/L to 2 mg/L. Calculate the percentage decrease.
80%
8%
400%
20%
25.
Oxygen in a lake after fertiliser run-off. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 10
"Oxygen (mg/L)" rises to a peak at 0, then falls
"Oxygen (mg/L)" decreases as "Week" increases
"Oxygen (mg/L)" stays the same
"Oxygen (mg/L)" increases as "Week" increases
26.
Fertiliser use should weigh food production against ____.
taste
weather
environmental damage
colour
27.
Algae cover on a lake after a fertiliser spill. At what value of "Day" is "Algae cover (%)" greatest?
Dr Dabour Hub Academy - figure 11
15
20
5
0
28.
True or false? Artificial fertilisers have been used for about 100 years.
True
False
29.
Which statement is correct?
Haber made glucose from air.
Nitrate in drinking water is harmless.
NPK stands for nitrogen, potassium and krypton.
N, P and K stand for nitrogen, phosphorus and potassium.
30.
True or false? An algal bloom blocks light from plants below.
True
False
31.
Which term matches this definition? “The amount of crop produced.”
Magnesium
Yield
Water bath
Carl Bosch
32.
Yield rose from 4 to 6.5 t/ha with fertiliser. Calculate the percentage increase.
62%
25%
162%
38%
33.
A field of 8 ha receives 200 kg of fertiliser per ha. How much in total?
25 kg
1600 kg
160 kg
208 kg
34.
Each harvest removes ____ from the field.
heat
minerals
air
light
35.
A field of 12 ha receives 200 kg of fertiliser per ha. How much in total?
240 kg
17 kg
212 kg
2400 kg
36.
Yield rose from 3.5 to 7.2 t/ha with fertiliser. Calculate the percentage increase.
51%
37%
106%
206%
37.
A field of 5 ha receives 100 kg of fertiliser per ha. How much in total?
105 kg
50 kg
20 kg
500 kg
38.
Wheat yield with different amounts of nitrate fertiliser. By how much does "Yield (t/ha)" change between 0 and 200?
Dr Dabour Hub Academy - figure 12
5.4
6.7
9.2
13.0
39.
Nitrate-contaminated water can harm ____.
rocks
plants only
babies
fish only
40.
Wheat yield with different amounts of nitrate fertiliser. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 13
"Yield (t/ha)" decreases as "Fertiliser (kg/ha)" increases
"Yield (t/ha)" stays the same
"Yield (t/ha)" rises to a peak at 200, then falls
"Yield (t/ha)" increases as "Fertiliser (kg/ha)" increases
41.
Which is the correct definition of “Fritz Haber”?
Making glucose from carbon dioxide and water using light energy.
The chemist who made ammonia from air.
Pores that let gases in and out of leaves.
Where sugars are used or stored.
42.
Algae cover on a lake after a fertiliser spill. By how much does "Algae cover (%)" change between 0 and 25?
Dr Dabour Hub Academy - figure 14
52
57
65
62
43.
True or false? Fertiliser run-off can cause eutrophication.
True
False
44.
Which term matches this definition? “Making ammonia from nitrogen in the air.”
Haber process
Translocation
Phosphate
Soda lime
45.
True or false? N, P and K stand for nitrogen, phosphorus and potassium.
True
False
46.
The flow diagram shows what happens when fertiliser runs into a lake. Which step is missing at "?"
Dr Dabour Hub Academy - figure 15
Bacteria decay the dead plants and use up oxygen
Fish eat the algae
More light reaches the bottom
Water becomes clearer
47.
The Haber–Bosch process makes about ____ million tonnes of nitrate fertiliser a year.
120
1.2
12
1200
48.
Oxygen in a lake after fertiliser run-off. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 16
A
B
C
D
49.
Most plants cannot use nitrogen from the ____.
air
nitrates
fertiliser
soil
50.
Lake oxygen fell from 8 mg/L to 3 mg/L. Calculate the percentage decrease.
62%
5%
167%
38%
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
Part of Chapter 9: Plants and Photosynthesis — see every lesson and quiz in this unit.
Accepted payment methods