Question

Kharif crops are grown in which season? *
2 points
winter
rainy
summer
autumn
What precautions should be taken during covid pandemic
2 points
Social distancing
Regular use of sanitiser
cover face with mask
All of the above
Choose the modern method of irrigation *
2 points
chain pump
drip irrigation
dhekli
moat
Which is used as a weedicide?
2 points
DDT
Urea
BHC
2,4 D
The process of removing husk from grains:
2 points
Threshing
Winnowing
Broadcasting
Irrigation
Vaccine used against Covid19
2 points
Covishield
Covaccine
Both
None of the above
ORS is given to a person incase of:
2 points
Malaria
Diarhhoea
Diptheria
Typhoid
AIDS is a communicable disease.
2 points
Chemical substances used against bacterial infection
2 points
Antibodies
Antibiotics
Antigen
Antacid
Bacteria present in root nodules of legumes to fix atmospheric nitrogen
2 points
Lactobacillus
Rhizobium
Artificial silk is called as
2 points
Rayon
Nylon
Terylene
Polycot
Manure helps the soil by
2 points
making it porous
making it fertile
improving soil texture
all of the above
Plastics are biodegradable
2 points
True
False
Which of the following synthetic fibre is the strongest and use to make seat belts and ropes of parachute
2 points
Acrylic
Polyester
Nylon
Terelene
Name the two most reactive metals
2 points
Sodium , iron
Calcium , hydrogen
zinc , potassium
Potassium , sodium
The property by which metals can be drawn into thin wires
2 points
Malleability
Ductility
Conductivity
None of the above
Metals react with acid to produce ____ gas
2 points
carbonate
carbon dioxide
hydrogen
hydrogen sulfide
Iron displaces copper from its solution of copper sulphate . The colour of solution changes from
2 points
Green to Blue
Red to Blue
Blue to Green
Green to Black
Which non metal is used as a disinfectant
2 points
Nitrogen
phosphorus
Fluorine
Chlorine
Which type of clothes are preferred during the summer season
2 points
woolen clothes
cotton clothes
raincoat
Dark coloured clothes​

Answer 1

Answer:

The process by which green plants make their own food from carbon dioxide and water by using sunlight energy is called photosynthesis.