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Agriculture Quiz

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which compound is primarily responsible for cation exchange capacity in soils?

a)

Sand

b)

Clay minerals

c)

Nitrogen gas

d)

Urea

2.

What is the botanical term for fruit that develops without fertilization?

a)

Polyploidy

b)

Parthenocarpy

c)

Hybridization

d)

Vivipary

3.

In ruminants, methane is mainly produced in the:

a)

Omasum

b)

Abomasum

c)

Rumen

d)

Reticulum

4.

The gene responsible for dwarf varieties in wheat during the Green Revolution is known as:

a)

Bt gene

b)

Rht gene

c)

Ppd gene

d)

Sd1 gene

5.

Which of the following is a precision agriculture tool?

a)

Slash-and-burn

b)

Global Positioning System (GPS) mapping

c)

Broadcast seeding

d)

Hand tillage

6.

What is the main pollutant in agricultural runoff that causes eutrophication?

a)

Phosphates

b)

Sodium chloride

c)

Carbonates

d)

Sulfates

7.

The most heat-tolerant cereal crop is:

a)

Maize

b)

Sorghum

c)

Barley

d)

Oats

8.

A high feed conversion ratio (FCR) in animals indicates:

a)

Better feed efficiency

b)

Poor feed efficiency

c)

Stable efficiency

d)

No relation to efficiency

9.

Which practice reduces erosion on steep slopes the most?

a)

Strip grazing

b)

Alley cropping

c)

Contour terracing

d)

Crop thinning

10.

In hydroponics, the main medium used instead of soil is:

a)

Sand and gravel

b)

Nutrient solution

c)

Peat only

d)

Charcoal

11.

In plant breeding, the term “backcrossing” refers to:

a)

Crossing two pure lines

b)

Crossing F1 with a parent

c)

Crossing two different species

d)

Inducing mutations

12.

A common vector used in plant genetic engineering is:

a)

E. coli

b)

Plasmodium

c)

Agrobacterium tumefaciens

d)

Rhizopus species

13.

The rumen microbial population is dominated by:

a)

Fungi

b)

Protozoa

c)

Bacteria

d)

Nematodes

14.

The economic principle of “diminishing returns” in agriculture is most relevant to:

a)

Land tenure

b)

Fertilizer application

c)

Poultry housing

d)

Plant spacing

15.

The internationally recognized standard for organic agriculture is regulated by:

a)

IITA

b)

FAO

c)

IFOAM

d)

UNESCO

16.

The process of reclaiming saline soil involves:

a)

Adding sodium

b)

Waterlogging

c)

Leaching with fresh water

d)

Increasing pH

17.

What is the primary cause of aflatoxin contamination?

a)

Fungi in stored grains

b)

Over-irrigation

c)

Poor fertilizer use

d)

Excessive pesticide residue

18.

Carbon sequestration in agriculture primarily involves:

a)

Increasing tillage

b)

Incorporating organic matter

c)

Burning stubble

d)

Removing forests

19.

The economic life of a dairy cow in commercial farms is generally:

a)

1–2 years

b)

3–5 years

c)

6–8 years

d)

10+ years

20.

“Minimum tillage” is designed to reduce:

a)

Soil carbon

b)

Soil erosion and compaction

c)

Crop root growth

d)

Rainfall infiltration

21.

The “Fixed Cost” in a farm business refers to:

a)

Seed purchase

b)

Fertilizer use

c)

Land rent

d)

Casual labor

22.

Which livestock species has the highest dressing percentage?

a)

Cattle

b)

Poultry

c)

Sheep

d)

Goat

23.

The main component of biofertilizers is:

a)

Synthetic chemicals

b)

Beneficial microorganisms

c)

Mineral salts

d)

Lime compounds

24.

The hybrid vigor expressed in crossbreeding is known as:

a)

Polyploidy

b)

Heterosis

c)

Mutation

d)

Selfing

25.

A high bulk density in soil indicates:

a)

High porosity

b)

Good aeration

c)

Soil compaction

d)

Low water retention

26.

Which of the following is a water-efficient irrigation method?

a)

Basin flooding

b)

Sprinkler irrigation

c)

Drip irrigation

d)

Furrow irrigation

27.

Anemia in pigs is commonly prevented by:

a)

Vitamin A injection

b)

Iron injection

c)

High maize diets

d)

Castration

28.

The most productive tissue in plant secondary growth is:

a)

Xylem

b)

Cork cambium

c)

Vascular cambium

d)

Phloem

29.

The disease “Gumboro” affects:

a)

Cattle

b)

Poultry

c)

Goat

d)

Camel

30.

What is the most limiting nutrient in tropical soils?

a)

Nitrogen

b)

Phosphorus

c)

Calcium

d)

Sulfur

31.

The process of raising fish in paddy fields is called:

a)

Pisciculture

b)

Rice-fish culture

c)

Polyculture

d)

Aquaponics

32.

Micropropagation in plants is done using:

a)

Cuttings

b)

Seeds

c)

Tissue culture

d)

Grafting

33.

The pH at which most soil nutrients are optimally available is:

a)

3.5

b)

4.5

c)

6.5

d)

9.0

34.

Overgrazing mainly leads to:

a)

Increased fertility

b)

Biodiversity loss

c)

Improved yield

d)

Reduced waterlogging

35.

The FAO was established in which year?

a)

1919

b)

1945

c)

1962

d)

1976

36.

The main gas emitted by waterlogged soils is:

a)

Oxygen

b)

Nitrogen

c)

Methane

d)

Helium

37.

The “Tsetse fly” is the vector of:

a)

Heartwater disease

b)

East Coast fever

c)

Trypanosomiasis

d)

Brucellosis

38.

The major challenge with monoculture farming is:

a)

Low pest risk

b)

Soil biodiversity decline

c)

High seed requirement

d)

Reduced irrigation need

39.

Which crop is most associated with cyanogenic glycosides?

a)

Wheat

b)

Cassava

c)

Millet

d)

Pumpkin

40.

The term “evapotranspiration” refers to:

a)

Plant wilting

b)

Water loss from soil and plants

c)

Soil saturation

d)

Fertilizer movement

41.

A common vaccine used in poultry disease control is for:

a)

Brucellosis

b)

Newcastle disease

c)

Foot rot

d)

Scours

42.

In economics, “opportunity cost” refers to:

a)

Money spent on inputs

b)

Loss of the next best alternative

c)

Farm profit

d)

Gross margin

43.

Which organ in ruminants absorbs excess water?

a)

Rumen

b)

Omasum

c)

Reticulum

d)

Abomasum

44.

“Biopesticides” are usually derived from:

a)

Petroleum

b)

Minerals

c)

Biological organisms

d)

Synthetic polymers

45.

The most suitable storage structure for grains in humid regions is:

a)

Mud silo

b)

Metal silo

c)

Wooden barn

d)

Open shed

46.

What is the major effect of soil erosion on farmland?

a)

Increased pH

b)

Loss of topsoil

c)

Higher organic matter

d)

Increased salinity

47.

The primary cause of “milk fever” in dairy cattle is:

a)

Protein overdose

b)

Calcium deficiency

c)

Excessive exercise

d)

Late lactation

48.

The enzyme responsible for converting starch to sugar in germinating seeds is:

a)

Urease

b)

Amylase

c)

Protease

d)

Cellulase

49.

In plant pathology, “vector transmission” refers to:

a)

Nutrient uptake

b)

Pollination

c)

Disease spread by organisms

d)

Root propagation

50.

Which international treaty governs plant genetic resources?

a)

Kyoto Protocol

b)

Convention on Biodiversity

c)

Cartagena Protocol

d)

ITPGRFA