Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Siya Kaur 5 years, 4 months ago
- 4 answers
Sachin Tendulkar 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
- All materials available in our environment which satisfy our needs are called as Resources.
- All resources have some value. Value means worth. Some resources have economic value and some do not, but both are important and satisfy human needs.
Posted by Om Prakash Parida 5 years, 4 months ago
- 3 answers
Yogita Ingle 5 years, 4 months ago
Soil is one of the most important natural resources. It supports varied life forms.
Soil is a mixture that contains minerals, organic matter, and living organisms. But broadly speaking, soil can refer to any loose sediment. Moreover, there are many types of soil that are distributed around the world and these are generally classified into the following:
- Clay Soil
- Sandy soil
- Loamy Soil
- Silt Soil
Posted by Om Prakash Parida 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Microorganisms are too small. So, they cannot be seen with the naked eye. To see the microorganisms like bacteria and protozoa, we use a microscope. Fungus that grows on the bread can be seen with a magnifying glass.
Posted by Aayush Patel 5 years, 4 months ago
- 2 answers
Yogita Ingle 5 years, 4 months ago
The crops that are sown in the rainy season are called Kharif crops (also known as the summer or monsoon crop) in India. Kharif crops are usually sown with the beginning of the first rains in July, during the southwest monsoon season. The main monsoon season in India runs from June to September. The Kharif crops include rice, maize, sorghum, pearl millet/bajra, finger millet/ragi (cereals), arhar (pulses), soybean, groundnut (oilseeds), cotton etc.
Posted by Saumya Kumar 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
(i) Macavity is a cunning cat.
(ii) If not a cat, he can be an expert thief or criminal or a mysterious creature.
Posted by ?Sayali? ?Gunjal? 5 years, 4 months ago
- 2 answers
Yogita Ingle 5 years, 4 months ago
Basic agricultural practices include the following:
Soil Preparation
After selecting the crop, the land is prepared for cultivation. If the land prepared is good, it yields good quality crops. The methods of soil preparation include:
1.Ploughing
It is also known as tiling. It is the process of loosening and turning the soil either manually or by the tractors. Organic manures and phosphates are mixed with the soil at this stage. This increases the fertility of the soil before the seeds are sown.
2.Harrowing
This method is done to smoothen the soil. The weeds are removed and fertilizers are mixed with soil. This also brings the moisture of the soil up.
3.Levelling
Uneven land affects the quality of the crops. It also helps in providing optimum moisture to the soil. The land is levelled to increase the water use efficiency of the soil. It reduces weed problems and irrigation time. The crop matures uniformly.
4.Manuring
The process of adding organic minerals and nutrients to the soil is called manuring. Manure can be of three types:
- Animal manure
- Plant manure
- Compost
?Sayali? ?Gunjal? 5 years, 4 months ago
Posted by Nikhil Sharma 5 years, 4 months ago
- 1 answers
Shruti Dhua 5 years, 4 months ago
Posted by Channaraidu Shetty 5 years, 4 months ago
- 5 answers
Jignesh Reddy 5 years, 4 months ago
Posted by Shreya Kumbar 5 years, 4 months ago
- 1 answers
Posted by Shreya Kumbar 5 years, 4 months ago
- 1 answers
?Sayali? ?Gunjal? 5 years, 4 months ago
Posted by Bindu Singh Kar 5 years, 4 months ago
- 4 answers
Ritesh Yadav 5 years, 4 months ago
Saumya Kumar 5 years, 4 months ago
Posted by Hely Donga 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Weeds are unwanted plants in the cultivated field. They compete for nutrients, space, water & light, therefore, adversely affect crop growth.
Weeds can be controlled by applying weedicides. These are chemicals which kill weeds without damaging the crops. These chemicals are diluted with water and then sprayed with a sprayer to the field. Since these chemicals are toxic, therefore farmers should cover their mouth/ nose while applying weedicides.
Posted by Pratham Khunt 5 years, 4 months ago
- 5 answers
Posted by Kukee Patel 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Laws of Reflection
Law 1 : The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane.
Law 2 : Angle of incidence is equal to the angle of reflection
Law 3 or Law of Lateral Inversion: In a image formed by a mirror, the left of the object appears to be the right and the right of the object appears to be the right. (Stand in front of the mirror and lift your right hand. In the mirror, it appears like you have lifted the left hand and viceversa)
Posted by Ayan Khan Khan 5 years, 4 months ago
- 5 answers
?Sayali? ?Gunjal? 5 years, 4 months ago
?Sayali? ?Gunjal? 5 years, 4 months ago
?Sayali? ?Gunjal? 5 years, 4 months ago
?Sayali? ?Gunjal? 5 years, 4 months ago
Posted by Nupur Hiren Pawar 5 years, 4 months ago
- 3 answers
Saumya Kumar 5 years, 4 months ago
Posted by Deepak Patil 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
- A vaccine is an antigenic substance that develops immunity against a disease which can be delivered through needle injections or by mouth or by aerosol.
- Vaccination is the injection of a dead or weakened organism that forms immunity against that organism in the body.
- Immunization is the process by which an animal or a person stays protected from diseases.
Posted by Mohammed Zeeshaan 5 years, 4 months ago
- 2 answers
Gaurav Seth 5 years, 4 months ago
Properties of Non-Metals
Physical Properties of Non-metals
Some of the physical properties of non-metals are listed below.
- Poor conductors of electricity and heat
- Non-Ductile metals
- Brittle solids
- Maybe solids, liquids or gases at room temperature
- These are not sonorous
- Transparent
Chemical Properties of Non-metals
Some of the chemical properties of non-metals are listed below.
- The number of electrons in the outer shell is generally 4-8
- Easily gain or lose valence electrons
- Form acidic oxides whenever they come in contact with oxygen
- High electronegative elements
- Great oxidizing agents
Gaurav Seth 5 years, 4 months ago
Physical Properties of Metals
Some of the physical properties of metals are listed below.
- Shiny (lustrous) in nature
- Metal is a good conductor of electricity and heat
- Density and melting point is high
- Mouldable (Malleable)
- Ductile
- At room temperature, it is in solid form except for mercury
- Opaque
Chemical Properties of Metals
Some of the chemical properties of metals are listed below.
- Easily corrodible
- Can lose electrons
- Form basic oxides
- Have low electronegativities
- Good reducing agents
Posted by Shresth Pandey Pandey 5 years, 4 months ago
- 1 answers
?Sayali? ?Gunjal? 5 years, 4 months ago
Posted by Jayanti Basumatry 5 years, 4 months ago
- 1 answers
Posted by Ankit Singh 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Harvesting is cutting of crop after it is matured. The season of harvesting brings a lot of happiness as this is time when the hard work of farmers brings results.
Harvesting can be done manually using a sickle or with a machine called Harvester.
Harvesting is not only about cutting crops, but also involves separation of grain seeds from chaff (thin covering of grain). This process of separation of grain seeds from chaff is called ‘Threshing’.
Posted by Prarthana Bandiwad 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Manure is an organic substance that increases soil fertility. It is prepared from decomposition of animal excreta & plant wastes. It consists of Organic matter and nutrients essential for the plant. It improves the soil structure by increasing its water holding capacity, and also avoids water logging.
Some of the advantages of using manures are:
- Improves soil texture
- Restore soil with all nutrients
- Increases water-retaining capacity of soil
- Non-toxic
- Eco friendly
- Recycled biological product
Posted by Anshu Yadav 5 years, 4 months ago
- 1 answers
Meghna Thapar 5 years, 3 months ago
Vacuum cleaner:
1. Vacuum cleaner applies the principle of atmospheric pressure to remove dust particles. When it is switched on, the fan sucks out the air from space inside the vacuum (space A). Space A then becomes a partial vacuum.
2. The atmospheric pressure outside, which is greater, then forces air and dust particles into the filter bag. This traps the dust particles but allows the air to flow through an exitath the back.
Posted by Ashutosh Agnihotri 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Some bacteria like rhizobium and blue green algae are able to fix nitrogen gas from the atmosphere to enrich the soil with nitrogen compounds and increase its fertility.
Posted by Manvinder Singh 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
When magnesium ribbon burns in presence of oxygen. We could observe a dazzling white flame and a white substance named magnesium oxide.
2Mg + O2 ⟶ 2MgO
Posted by Riya Sheemar 5 years, 4 months ago
- 1 answers
Rahul Rohit 5 years, 4 months ago
Posted by Arya Malladad 5 years, 4 months ago
- 4 answers
Divyansh Kukreti 5 years, 4 months ago
?Sayali? ?Gunjal? 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
Irrigation is the process of applying water to the crops artificially to fulfil their water requirements. Nutrients may also be applied to the crops through irrigation. The various sources of water for irrigation are wells, ponds, lakes, canals, tube-wells, and even dams. Irrigation offers moisture required for growth and development, germination, and other related functions.
Posted by Fatema Attarwala 5 years, 4 months ago
- 2 answers
Saumya Kumar 5 years, 4 months ago
Renuka Seiwal 5 years, 4 months ago
Posted by Lalit Charan 5 years, 4 months ago
- 5 answers
Posted by Lalit Charan 5 years, 4 months ago
- 2 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Nithya Chinnu 5 years, 4 months ago
0Thank You