Question

Sowing of seeds manually * 1 point Irrigation Tilling Broadcasting Weeding Rhizobium bacteria is present in the root nodules of this plant * 1 point Pea Wheat Paddy Maize Method of replenishing soil nutrients * 1 point Crop rotation Multiple cropping Inter cropping All of the above Traditional method of irrigation having Lever system * 1 point Dekhli Rahat Moat Chainpump Covid 19 Is caused by * 1 point Virus Bacteria Protozoa Fungus Bacteria that promotes the formation of curd * 1 point Rhizopus Azotobacter Lactobacillus Bacillus Anthrax Disease carrying microbes produces _____________ in our body * 1 point Antibiotics Antigens Antiseptic Antibodies Method used for production of alcohol by yeast * 1 point Fermentation Pasteurization Preservation Vaccination Female anopheles mosquito is carrier of which disease? * 1 point Dengue Malaria Chikungunia None of the above Chemical used for food preservation * 1 point Sodium carbonate Sodium chloride Sodium benzoate Both b & c Synthetic fibre known as artificial silk * 1 point Nylon Rayon Acrylic Polyester Raw materials used to synthesise synthetic fibre * 1 point Option 1 Option 2 Petrochemicals Option 4 A special plastic used for non stick coating of cookwares * 1 point Bakelite Melamine PVC Teflon Plastic is non biodegradable and causes environmental pollution. * 1 point True False Metals react with acid to produce a gas which burns with a Pop sound * 1 point Oxygen Hydrogen Nitrogen Carbon Dioxide Metals stored in Kerosene * 1 point Copper & Alumunium Gold & Silver Zinc & Calcium Sodium & Potassium Copper sulphate solution turns ____________ in colour when iron nail is dipped in it * 1 point Blue Green Red Gases resulting in acid rain * 1 point SO2 , NO2,CO2 O3 , SO2 H2S,NH3 N2 , O2 Approximate time taken by peels of vegetables and fruits to degenerate * 1 point 10-30days 2-5months 1-2 weeks 10-15 years A liquid metal used in thermometer * 1 point Sodium Mercury Bromine Magnesium Nitrogen is one of the essential constituents of all living organisms as part of proteins, chlorophyll, nucleic acid and Vitamins. The atmospheric nitrogen cannot be taken directly by plants and animals.Certain bacteria and blue green algae present in the soil fix nitrogen from atmosphere converting into nitrogen compounds so that it can be utilised by plants from the soil through root .When plants and animals die ,bacteria and fungi in the soil convert nitrogenous waste into compounds to be used by plants again and certain bacteria convert some part of them to Nitrogen gas which goes back into atmosphere .As a result nitrogen in the atmosphere remains more or less constant. READ THE PASSAGE ABOVE & ANSWER THE FOLLOWING QUESTIONS Our atmosphere has ___% nitrogen gas. * 1 point Your answer Nitrogen occurs in the form of ___________in living organisms. * 1 point Your answer _______and______ fix atmospheric nitrogen into compounds. * 1 point Your answer Plants utilise nitrogen compounds from the soil through______. * 1 point Your answer The circulation of Nitrogen in the nature maintaining its percentage in atmosphere is known as_____. * 1 point Your answer What are weeds?Name one weedicide. * 2 points Your answer Write any 3characteristics of Synthetic fibres ( OR ) Plastics . * 3 points Your answer Identify the Organism * 1 point  Your answer Identify the organism * 1 point  Your answer Name one disease each caused by Microorganisms through Air,Water,Mosquito . * 3 points Your answer Differentiate between metals and nonmetals based on their physical properties . *​

Answer 1

Answer:

will you please write your question correctly

Answer 2

Answer:

I don't answer because I have some network problem

Pls make me brainliest