STD VIII - Science (III)

Name
ITS ID
Crops grow well when they are
Fertilized
Irrigated
Cared
Wilted
Most essential component for crops is
Water
Fertilizers
Soil
Humidity
Crops that need a lot of water are
Rice and maize
Wheat and maize
Rice and wheat
Maize and other grains
Carriage of water through pipelines and tube wells to farms is known as
Fertilization
Hydration
Irrigation
Pollination
Diseases which are caused by micro-organisms are called
Contagious
Venereal
Infectious
Incurable
The microbe that reproduces only inside the body of the host organism
Bacteria
Virus
Protozoa
Fungi
Sodium Benzoate is a _______________
Vaccine
Preservative
Antibiotic
Pesticide
Edward Jenner in 1798 discovered the vaccine for ______________
Chicken pox
Polio
Small pox
Rabies
Disease causing micro organisms are called________________
Carriers
Pathogens
Antibodies
Microbes
Sodium Metabilsulphite is a
Vaccine
Preservative
Antibiotic
Pesticide
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