WorksheetsF.A.-1 SCIENCE GRADE-VIII
Total questions: 20
Worksheet time: 26mins
The process of loosening of the soil is called
Tilling
Harvesting
Spraying
Weeding
Seed drill is used for
Harvesting
Cleaning the seed
Sowing
Weeding
Rabi crop is harvested in
January
March
October
September
The agricultural instrument used for removal of weed is
Sickle
Khurpi
Seed drill
Plough
The chemical substances rich in nutrients are called
Fertiliser
Weedicide
Pesticide
Herbicide
Supply of water to crops at appropriate intervals is called
Cultivation
Irrigation
Harvesting
Sowing
…………. are chemicals to control growth of weeds.
Compost
Fertilizers
Manures
Weedicides
…………. is a device to spread seeds in soil.
Plough
Sickle
Seed drill
Khurpi
Various kinds of plants grown at a place constitute a crop.
True
False
Harvesting is the cutting down of the mature crop.
True
False
It is better to use fertilizers than organic manure.
True
False
What are the advantages of preparing the soil?
Allows roots to penetrate the soil easily
Makes the top soil nutrient rich
Makes decomposition by microbes easier
All of these
Arrange the following agricultural practices in the order in which they are followed.
A. Storage
B. Harvesting
C. Irrigation
D.Sowing
E. Preparation of soil
A-B-C-D-E
E-D-C-B-A
C-A-D-B-E
E-A-C-B-D
The organic substance obtained from dead plants and animal wastes is
Manure
Fertilizer
Weedicides
Pesticides
Combines are used for:
harvesting the crops
threshing
sowing of seeds
harvesting and threshing both.
The process of loosening and turning the soil is called
Broadcasting
Irrigation
Levelling
Ploughing
WHICH OF THE FOLLOWING CAN FEED A GROWING POPULATION?
TRADITIONAL METHOD OF CROP PRODUCTION
INDUSTRIAL EVOLUTION
MODERN METHOD OF IMPROVED CROP PRODUCTION AND MANAGEMENT
NONE OF THE ABOVE
In the harvested crop the grain seed is separated from the chaff. This process id called ___
Ploughing
Threshing
Weeding
Winnowing
Which of the following is not a method of irrigation?
Canals
Drip irrigation
Sprinkler
Storing
Large scale storage of grains is done in----------- to protect them from pests silos.
True
False
