Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Kartik Kumar 5 years, 5 months ago
- 7 answers
Md Ammar Azam 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Kharif crops:
Kharif crops are sown in June and harvested in November.
Examples of kharif crops:
"Jowar, rice, millet", "maize, soybean, turmeric", "Groundnut, cotton, sugarcane", "bitter gourd, etc".
Here, the crops are grouped based on their varieties and the month in which they are harvested.
Vikas Saha 5 years, 5 months ago
Kartik Kumar 5 years, 5 months ago
Posted by Simran Ahden 5 years, 5 months ago
- 2 answers
Vikas Saha 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
1)They provide quick replenishment of plant nutrients in the soil and restores soil fertility.
2)They are easily absorbed by the plants.
3)They are easy to transport,store and handle because they come in bags.
4)The use of fertilisers has helped the farmers to get better yields of crops such as wheat,maize,rice.
Posted by Keerthana Velu 5 years, 5 months ago
- 1 answers
Yogita Ingle 5 years, 5 months ago
Element 1: H-Hydrogen
Element 2: He-Helium
Element 3: Li-Lithium
Element 4: Be-Beryllium
Element 5: B-Boron
Element 6: C-Carbon
Element 7: N-Nitrogen
Element 8: O-Oxygen
Element 9: F-Fluorine
Element 10: Ne-Neon
Element 11: Na-Sodium
Element 12: Mg-Magnesium
Element 13 : Al-Aluminum
Element 14 : Si-Silicon
Element 15 : P-Phosphorus
Element 16 : S-Sulfur
Element 17 : Cl-Chlorine
Element 18 : Ar-Argon
Element 19 : K-Potassium
Element 20 : Ca-Calcium
Element 21 : Sc-Scandium
Element 22 : Ti-Titanium
Element 23 : V-Vanadium
Element 24 : Cr-Chromium
Element 25 : Mn-Manganese
Element 26 : Fe-Iron
Element 27 : Co-Cobalt
Element 28 : Ni-Nickel
Element 29 : Cu-Copper
Element 30 : Zn-Zinc
Element 31 : Ga-Gallium
Element 32 : Ge-Germanium
Element 33 : As-Arsenic
Element 34 : Se-Selenium
Element 35 : Br-Bromine
Element 36 : Kr-Krypton
Posted by Jasmeet Kour 5 years, 5 months ago
- 1 answers
Yogita Ingle 5 years, 5 months ago
The essential functions of the cell include:
- The cell provides support and structure to the body.
- Facilitates growth by mitosis
- Helps in reproduction
- Provides energy and allows the transport of substances.
Posted by Vidhi Singh 5 years, 5 months ago
- 1 answers
Yogita Ingle 5 years, 5 months ago
Aim: To separate healthy seeds from damaged (unhealthy seeds)
Materials: Seeds to be tested (mixture of healthy and damaged seeds), water, beaker
Procedure/Observation: Take some water in a beaker and add seeds to be tested to it. When seeds are poured in water, they begin to float. After few hours, mature viable seeds absorb water and sink to the bottom of the beaker. Empty, immature or damaged seeds and other light material remain floating and can be skimmed off after an appropriate period of time. In this way, healthy mature and viable seeds can be separated from damaged, immature and non-viable seeds.
Posted by Shabnam Jahan 5 years, 5 months ago
- 3 answers
Yogita Ingle 5 years, 5 months ago
Harvesting
- Harvesting is the process of cutting the mature crops, and it usually happens 3 to 4 months after sowing.
- The crops are either uprooted or cut close to the ground.
- The implements used for harvesting include the sickle (a short- handled farming tool with a circular blade), and the harvester.
- Harvesting is followed by threshing, wherein the grain seeds are separated from the chaff (seed coat) using a combine. Separation may also be done by winnowing.
Posted by Suraj Singh 5 years, 5 months ago
- 1 answers
Jasmeet Kour 5 years, 5 months ago
Posted by Dolker Youngser 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
|
Category of Infectious Agent |
Examples of Diseases Caused |
|
Virus |
Common cold, influenza, Dengue fever, AIDS |
|
Bacteria |
Typhoid, cholera, tuberculosis, anthrax |
|
Fungi |
Skin infections |
|
Protozoans |
Malaria, kala-azar |
|
Worms |
Intestinal worm infections, elephantiasis |
Posted by Gitarthi Choudhury 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
- Food chain is a succession of organisms in an ecological community that constitutes a continuation of food energy from one organism to another as each consumes a lower member and in turn is preyed upon by a higher member.
- Food web is a complex network of many interconnected food chains.
Posted by Kunal Chattha 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
Weeds are unwanted plants in the cultivated field. Example - Xanthium (gokhroo), Parthenium (gajar ghas), Cyperinus rotundus (motha).
Effects of weeds on crop plants:
- The growth of weeds in the crop fields is harmful because they compete for food, space and light.
- They take up nutrients and reduce the growth of the crop.
- They spread crop pests and diseases by acting as alternate host to insects and microorganisms.
- Some weeds may produce toxic substance which may interfere with the growth of crop plants.
Therefore, removal of weeds from cultivated fields during the early stages of crop growth is essential for a good harvest.
The process of removing the weeds from crop field is called weeding.
Methods of controlling weeds:
- Mechanical methods: Weeds can be controlled by mechanical methods like uprooting or ploughing with trowel or khurpi.
- Chemical methods: They can also be controlled by using herbicides or weedicides. Some common weedicides are 2,4-D, Atrazine and Isoproturon.
- Cultural methods: They include proper bed preparation, timely sowing of crops, intercropping and crop rotation.
- Biological control: Biological control of weeds involves the deliberate use of insects or some other organisms which consume and specifically destroy the weed plants like eradication of Opuntia cactus by using the cochineal insects in Maharashtra and Tamil Nadu.
Posted by Rakesh Mishra 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
Fungi include the yeasts, molds & mushrooms. There are a number of fungi that produce toxins that are extremely dangerous. Black molds growing on grains, and on damp surfaces in homes produce toxins that inhibit protein synthesis in eukaryotic cells. Ingestion of these grains can cause vomiting, nausea, and even death.
Posted by Anjali Yadav 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
In short, the human resource department forms the crux of an organization that creates, implements and oversees policies between employees and the top management. The role of an HR is crucial because it talks about the most important resource – humans i.e. employees or talent in business parlance.
Posted by Anjali Yadav 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
Resource conservation is management of the use of natural resources to provide the maximum benefit to current generation while maintaining capacity to meet the needs of future generations. Conservation includes both the protection and rational use of natural resources.
Posted by Asmit Maurya 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
The average human body contains approximately 37.2 trillion cells. Cells are always created and destroyed in the human body. About 300 million cells die every minute in our bodies! Since different cells have different jobs in our body, there are about 210 different "types" of cells.
Posted by Surender Yadav 5 years, 5 months ago
- 0 answers
Posted by Harman Padam 5 years, 5 months ago
- 1 answers
Md Ammar Azam 5 years, 5 months ago
Posted by Pranav Punyapu 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
Metals tend to lose electrons to attain Noble Gas electron configuration. Groups 1 and 2 (the active metals) lose 1 and 2 valence electrons, respectively, because of their low Ionization energies. Non-metals are limited to the elements in the upper right hand corner of the Periodic Table.
Posted by Parth Variya 5 years, 5 months ago
- 1 answers
Yogita Ingle 5 years, 5 months ago
- Manufacturing synthetic fibres is actually helping conservation of forest as manufacturing of natural fibre causes cutting of lots of trees and that can cause deforestation.
- Manufacturing of synthetic fibre requires chemical and that does not leads to deforestation.
- Hence manufacturing synthetic fibres is actually helping conservation of forest.
Posted by Gyanadeep Mishra 5 years, 5 months ago
- 2 answers
Yogita Ingle 5 years, 5 months ago
Bleaching Powder's chemical formula is CaOCl2 and is called Calcium Oxychloride. It is prepared on dry slaked lime by chlorine gas.
Posted by Sangeetha Goud 5 years, 5 months ago
- 1 answers
Foram Mandali 5 years, 5 months ago
Posted by Sai Hasini Battu 5 years, 5 months ago
- 2 answers
Guddi G 5 years, 5 months ago
Posted by Harsh Maurya 5 years, 5 months ago
- 1 answers
Foram Mandali 5 years, 5 months ago
Posted by Vansh Kimothi 5 years, 5 months ago
- 4 answers
Ritesh Yadav 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
In our solar system, there are eight planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Among these, Mercury is the closest planet whereas, Neptune is farthest planet to the sun.
Posted by Diago Costa 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 2 months ago
The physical density of a material refers to the mass/volume ratio. Optical density determines how much a light wave is slowed down as it passes through a medium. The more optically dense a material is, the slower that a wave will move through the material. The refractive index is a measurement of optical density. The speed of light in a medium is related to its optical density, and thus its index of refraction. The more optically dense a medium, the slower the light travels, and the larger the index of refraction.
Posted by Raja Gurdeep Singh Sodhi 5 years, 5 months ago
- 2 answers
Md Ammar Azam 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Farmers take this huge responsibility of cultivation of crops to provide food to the entire population.
Various tasks performed by farmers for crop production are termed as Agricultural practices. Following activities form a part of Agricultural practices:
- Preparation of soil
- Sowing
- Adding manure and fertilizers
- Irrigation
- Protecting from weeds
- Harvesting
- Storage
Posted by Amisha Chopra 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
The net force is always in the direction of the acceleration but it is not necessary that the direction of the velocity is in the direction of the acceleration. If the net acceleration is in the opposite direction of the velocity then the net force is not acting in the direction of the motion.
Posted by Tejinder Singh 5 years, 5 months ago
- 2 answers
Md Ammar Azam 5 years, 5 months ago
Sachin Kumar Kumar 5 years, 5 months ago
Posted by Ravi Raushan 5 years, 5 months ago
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Diksha Singh 5 years, 5 months ago
Posted by Hardik Gupta 5 years, 5 months ago
- 6 answers
Md Ammar Azam 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Venus (Shukra) is nearest planet to Earth and It is the brightest planet visible in the night sky.
Posted by Ashok Kumar 5 years, 5 months ago
- 1 answers
Meghna Thapar 5 years, 2 months ago
"Displacement" is the quantity which is measured by the area occupied under the velocity time graph distance. Moving something or someone from its or his or her place and position is called displacement. Displacement is a vector quantity. If an object goes back to where is started in certain time, then its displacement is zero. Its distance would be the total length of the journey. A displacement-time graph is able to show if an object is going backwards or forwards.
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Rudraksh Paliwal 5 years, 5 months ago
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