Question

Each quation has 1 marks:
(6 marks)
1. Why is the rotation of crops important?
પાકની ફેરદલી કેમ જરૂરી છે?
Give examples of two rabi and two kharif crops?
રષેિપ ને ખરીફ પાકના બે ઉદાહરણ સાપો,
3. Name a tool which is used for removing weed.
નિંદણ ને દૂર કરવા માટે કયા સાધનની જરૂર પડે છે.
Cholera is caused by
કોલેરા શેનાં દ્વારા થાય છે.
* What are antibiotics?
એન્ટીબાયોટીક વિશે જણાવો ?
Or
5. Carrier of malaria-causing protozoan is.
મલેરીયા કરતો પ્રોટોશુઆ કયા વાહક દ્વારા ફેલાય છે ?
6. Name the microorganisms which can fix atmospheric nitrogen in the soil.​

Answer 1

first five answers I think this is your answers

Answer 2

Answer:

1.Crop rotation is an important strategy for managing some diseases, weeds, and insect pests of vegetable crops. Rotating crops also provides nutritional benefits to plants and maintains soil health. Rotating crops helps maintain or improve soil health and maintain or increase the productivity of the farm over time.

crops.

2.Rabi crops- wheat, barley. Kharif crops- rice, maize.

3.Hoe is used for removing weed.

4.Cholera is caused by Vibrio cholerae.

5.A medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms.

6.Anopheles mosquito is carrier of malaria-causing protozoan.

7.Rhizobium can fix atmospheric nitrogen in the soil.