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WorksheetsProtected Cultivation
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
The Earth acts like a greenhouse that catches and traps heat from the sun.
a)
true
b)
false
2.
What is the greenhouse effect?
a)
The warming of a planet due to trapped radiation.
b)
The cooling of Earth due to air pollution.
c)
The heating of a solid, such as a rock.
3.
Greenhouses which do not require mechanical energy for moving fluids for their operation is ………………. Greenhouse
a)
Passive
b)
Active
c)
Solarium
d)
none of these
4.
The light intensity is measured by the international unit known as ………….
a)
Newton
b)
Lux
c)
Joule
d)
none of these
5.
A well maintained greenhouse with glass and acrylic sheet can last for……………
a)
Below 5 years
b)
Below 10 years
c)
20 years or more
d)
none of these
6.
The ability of air to remove solar heat from the greenhouse depends upon its ……………
a)
Volume
b)
Area
c)
Weight
d)
none of these
7.
The materials used for the construction of low cost polyhouses are ………….
a)
Glass and plastic films
b)
Wood and bamboo
c)
GI and aluminum sheets
d)
none of these
8.
A …………….is used to measure direct solar radiation from the sun and its marginal periphery
a)
Pyranometer
b)
Pyrheliometer
c)
Hydrometer
d)
none of these
9.
The heat content per unit mass is called ………….
a)
Specific volume
b)
Specific capacity
c)
Specific enthalpy
d)
none of these
10.
Agriculture is best defined as
a)
the hunting and gathering
b)
the altering genetic material of plants
c)
the cultivation of plants/domesticating animals
d)
using technology to increase production
11.
All of the following are physical factors that influence agriculture EXCEPT:
a)
Labour
b)
Soil
c)
Climate
d)
Water Supply
12.
The content of the soil, its depth and texture significantly influence agricultural activity
a)
TRUE
b)
FALSE
13.
GDP means ____
a)
Gross Domestic Produce
b)
Growing Domestic Penny
c)
Gross Dominion Power
d)
Gross Domestic Product
14.
Which of the following is a rabi crop?
a)
Rice
b)
Gram
c)
Millets
d)
Cotton
15.
Which of the following crops are grown with the onset of monsoons and are harvested in the months of September-October?
a)
Rabi
b)
Kharif
c)
Zaid
d)
None of these
16.
The ……………..can lower the temperature of incoming air by about 80% of the difference between the dry and wet bulb temperatures
a)
Fog cooling system
b)
Fan and pad cooling system
c)
Convection cooling system
d)
none of these
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