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Worksheets

Fertilizers

Total questions: 57

Worksheet time: 2hrs 54mins

Name
Class
Date
1.

Which among the following is not a Nitrogeneous fertilizer?

a)

NH2OH

b)

NH4SO4

c)

NO3-

d)

NH4Cl

2.

What are the three essential elements that plants require?

a)

nitrogen phosphate potassium

b)

nitrogen sulphur potassium

c)

nitrogen potassium phosphorous

d)

nitrogen potassium polonium

3.

what is the catalyst used in the Haber process?

a)

iron

b)

platinum

c)

silver

d)

gold

4.

Which of the following is untrue for the haber process?

a)

ammonia gas is cooled and collected as a liquid

b)

a really high temperature is used to speed up the reaction

c)

hydrogen and nitrogen are the raw materials for the reaction

d)

too high a pressure is unsafe

5.

ammonia reacts with acids to produce ammonium salts

a)

true

b)

false

6.

ammonia is a very acidic gas

a)

true

b)

false

7.

Which of the following would be a suitable fertiliser?

a)

nitrogen dioxide

b)

potassium nitrate

c)

copper phosphate

d)

nitrogen oxide

8.

What is the percentage of nitrogen in potassium nitrate ?

a)

25.7%

b)

15.2%

c)

20%

d)

13.8%

9.

What type of bonding is in ammonia?

a)

metallic

b)

covalent molecular

c)

covalent network

d)

ionic

10.

Fertilisers are salts. what type of reaction produces fertilisers?

a)

addition

b)

precipitation

c)

neutralisation

d)

condensation

11.

What is manure?

a)

Chemicals

b)

Decaying organic matter

c)

By-products of oil production

12.

Which of the following is an example of a natural fertilizer?

a)

Manure

b)

Rocks

c)

Living trees

13.

Which of the following is TRUE of inorganic fertilizers?

a)

They release nutrients through decomposers

b)

They are not synthetically manufactured

c)

They release nutrients quickly

14.

Peat moss, seaweed, and manure are all examples of what type of fertilizer?

a)

Organic

b)

Chemical

c)

Inorganic

15.

Which of the following is NOT one of the six essential nutrients plants need?

a)

Nitrogen

b)

Potassium

c)

Phosphorous

d)

Radium

16.

What are the 3 most important minerals?

a)

NPQ

b)

NPL

c)

NPK

17.

What does Nitrogen do for the soil? Check all that apply

a)

Vital to chlorophyll for photosynthesis

b)

It’s a amino acid component, blocks proteins

c)

Acids help to store energy and its uses

18.

Phosphorus is helps in what?

a)

Crop production

b)

Loss of solar energy

c)

Decreases blooming

19.

Potassium does what for soil? check all that apply

a)

Develops the size, shape, color and taste

b)

Low levels will stunt the growth of the plant

20.

Organic, inorganic, soluble, insoluble are fertilizers

a)

False

b)

True

21.

What are organic fertilizers?

a)

animal tankage, urea, sludge

b)

water, cars, law mowers, cans

c)

animal skin, utensils, slippers

22.

What is the main difference between an organic fertilizer and an inorganic fertilizer?

4 lines
23.

What are the raw materials for the Haber process?

a)

Hydrogen and Oxygen

b)

Hydrogen and Nitrogen

c)

Oxygen and Nitrogen

d)

Water and Nitrogen

24.

What is a reversible reaction?

a)

A reaction with oxidation and reduction

b)

A reaction with a forward and backward reaction

c)

A reaction with electron loss and gain

d)

A reaction that goes in reverse

25.
A complete fertilizer is made from
a)
N P K
b)
Ca Mg S
c)
C H O
d)
All of these
26.

Gas that makes up 78% of our atmosphere.

a)

Oxygen

b)

Nitrogen

c)

Hydrogen

d)

Carbon Dioxide

27.

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

a)

nitrogen composition

b)

nitrogen fixation

c)

ammonia

d)

denitrification

28.

What is the reason why Crop Rotation is used in farming?

a)

A three-field system to rotate crops to keep the soil healthy.

b)

Rotating crops from wheat to root crops to barley to keep the nutrients in the soil.

c)

So maximum crop yields can be achieved.

d)

All of These

29.

What is the source of fertilizer?

a)

Potassium

b)

Acid

c)

Alcalin

30.

What is the materials for making fertilizer?

a)

Metals and plastics

b)

Papers and boxes

c)

Fruits and vegetables

31.

What part of the fruits do you use to make fertilizer?

a)

The peel

b)

The seeds

c)

The fruit

32.

What animals/insects is helping the plant's growth?

a)

Snail

b)

Caterpillar

c)

Worm

33.

Apart from making fertilizer, what can you do with kitchen scrap?

a)

Throw it in dustbin

b)

Bury them in the garden

c)

Throw it into neighbor's house

34.

In a saltwater solution, what is the solvent?

a)

saltwater

b)

water

c)

salt

d)

heat

35.
_____ brings phosphorous into our waterways. .
a)
precipitation
b)
runoff
c)
transpiration
d)
condensation
36.

This is NOT a part of the phosphorus cycle.

a)

Phosphate is incorporated into sedimentary rocks

b)

Phosphate bound to soil

c)

Atmospheric phosphate

d)

Phosphate is absorbed from the soil by plants

37.
Which of the following statements is true of the phosphorus cycle?
a)
Phosphorus enters the atmosphere as phosphates.
b)
The phosphorus cycle utilizes the processes of erosion, and weathering.
c)
Phosphates are used in carbohydrate and glucose storage.
d)
The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.
38.
What role do decomposers play in the phosphorous cycle?
a)
absorb phosphorous 
b)
release phosphorous into atmosphere
c)
return phosphorous into the soil
d)
combustion
39.

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

a)

eutrophication

b)

Nothing

c)

Death

d)

diseases

40.

All living organisms are mainly composed of what elements?

a)

Oxygen, Carbon, Hydrogen, Nitrogen

b)

Carbon, Phosphorus, Nitrogen, Oxygen

c)

Sodium, Carbon, Nitrogen, Hydrogen

d)

Calcium, Phosphorus, Nitrogen, Oxygen

41.

Which of the following is NOT true of phosphorus and the phosphorus cycle?

a)

Phosphorus is mined from phosphorus rich rock, which is processed and then added to commercial inorganic fertilizers as well as detergents.

b)

Phosphorus tends to be more localized compared with other biogeochemical cycles that can move more freely in the global system.

c)

Phosphorus is generally found in rocks, sediments, and soil.

d)

Phosphorus does not exist in the atmosphere as a gas.

e)

Living organisms do not need phosphorus.

42.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle.
43.

VERMICOMPOST IS A

a)

FERTILISER

b)

PESTICIDE

c)

MANURE

d)

NONE OF THESE

44.

OUT OF FERTILIZER AND MANURE WHICH ONE IS EASILY ABSORBED BY THE ROOTS ?

a)

FERTILIZER

b)

MANURE

c)

BOTH MANURE AND FERTILIZER

d)

NONE OF THESE

45.

WHICH OF THE FOLLOWING IS NOT A FERTILIZER?

a)

UREA

b)

NPK

c)

POTASH

d)

RHIZOBIUM

46.

WHICH OF THE FOLLOWING IS NOT ECO FRIENDLY?

a)

VERMICOMPOST

b)

GREEN MANURE

c)

BIO FERTILIZER LIKE Rhizobium

d)

AMMONIUM SULPHATE

47.

Manures are

a)

Organic in nature

b)

Inorganic in nature

c)

Organic as well as inorganic in nature

d)

None of above

48.

The plant roots contain nitrogen fixing bacteria _________________.

a)

Orange

b)

Pea

c)

Mango

d)

Tomato

49.

The organic substance obtained from dead plants and animal wastes is

a)

Manure

b)

Fertilizer

c)

Irrigation

d)

Agriculture

50.

Which of the following is rich in organic nutrients?

a)

Potash

b)

Ammonium Sulphate

c)

Urea

d)

Compost

51.

Urea is a _______________

a)

Manure

b)

Fertilizer

52.
What does NPK stand for?
a)
Nutrients, Pancakes, Kittens
b)
Nitrogen, Phosphorus, Potassium
c)
Nitrogen, Potassium, Phosphorus
53.
Which of the following statements about fertilisers is correct?
a)
Fertilisers increase the water-holding capacity of soil.
b)
Fertilisers increase soil fertility in the long run.
c)
Fertilisers contain decomposed matter.
d)
Fertilisers contain inorganic salts.
54.
Which of the following substances will not affect the fertility of soil when added to it for a long period of time?
a)
Urea
b)
 Ammonium sulphate
c)
Compost
d)
Super phosphate
55.
Which of the following statements about manure is incorrect?
a)
Manure improves the texture of the soil.
b)
Manure adds inorganic matter to the soil.
c)
Manure increases the water-holding capacity of the soil.
d)
Manure enhances the growth of friendly bacteria in the soil.
56.
Manures are considered better than fertilisers because
a)
 manures provide humus to the soil whereas fertilisers do not provide  humus to the soil
b)
manures are rich in inorganic matter while fertilisers are not rich in inorganic matter
c)
manures can be stored for a long time whereas fertilisers cannot be stored for long time
d)
manures are prepared in factories while fertilisers are prepared in the fields
57.
Which of the following statements about the difference between fertilizers and manures is correct?
a)
Fertilisers decrease soil fertility in the long run, whereas long term use of manures does not affect soil fertility.
b)
Fertilisers are made of organic matter, while manures are chemical in  nature.
c)
Fertilisers are poor in plant Nutrients, while manures contain higher amount of plant nutrients.
d)
Fertilisers increase the water-holding capacity of soil in the long run, whereas long term use of manures does not affect the water-holding capacity of soil.

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