Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Arun Kumar 6 years ago
- 1 answers
Posted by Ganesh G 6 years ago
- 2 answers
Posted by Nitish Yadav 6 years ago
- 9 answers
Deepak Pal 6 years ago
Yogita Ingle 6 years ago
Humans have as much as 300 bones at birth. However, the bones start to fuse with age. At adulthood, the total number of bones is reduced to 206.
Gundubogula Srujana 6 years ago
Posted by Nitish Yadav 6 years ago
- 6 answers
Pappuyadav Pappu 6 years ago
Deepak Pal 6 years ago
Yogita Ingle 6 years ago
There are seven colors in the rainbow: red, orange, yellow, green, blue, indigo and violet.
Posted by Akshat Swami 6 years ago
- 0 answers
Posted by Sarang Kulkarni 6 years ago
- 2 answers
Seema Chandel 6 years ago
Avinash Avinash 6 years ago
Posted by Pappuyadav Pappu 6 years ago
- 1 answers
Posted by Gokul Halder 6 years ago
- 0 answers
Posted by Rushikesh Patil 6 years ago
- 3 answers
Yogita Ingle 6 years ago
The cells are called as structural and functional units of a living body. Cells are structural unit as they form the structure of the organism. Cells combine to form tissues, which further combine to form organs, organs combine to form organic systems, which further combine to form organism. So, cell is the basic structural unit for all unicellular and multicellular organisms.
Some of the basic life processes or functions takes place in every cell to keep the organisms alive such as digestion, respiration, excretion, etc., whether it is a single-celled organism or multicellular organism. So, the cells are also called the functional unit of life owing to these processes.
Posted by Amarjit Jena 6 years ago
- 1 answers
Yogita Ingle 6 years ago
Antibiotics are antimicrobial drugs obtained from other organisms (such as moulds, fungus and some soil bacteria) to combat harmful microorganisms. However, they are not very useful against certain microbes such as viruses.
Antibiotics are produced on a large scale by the fermentation process. This is a chemical process which is induced by the microorganisms in a large tank. A large tank contains the growth medium that provides the nutrition for the microorganism’s growth. Optimization of temperature, pH levels, oxygen and nutrient parameter in the fermentation tank is very crucial to producing antibiotics. After the completion of antibiotics production, they are extracted and purified through multiple physical processes. Finally, the purified antibiotics are converted into crystal form.
Posted by Mugil Mugil 6 years ago
- 2 answers
Gaurav Seth 6 years ago
It is a well defined circular path around the nucleus in which an electron revolves.
It represents the two-dimensional motion of the electron around the nucleus.
Vedansh Tomar 6 years ago
Posted by Pappuyadav Pappu 6 years ago
- 4 answers
Jeslin Anna Jacob? 6 years ago
Ankit Gupta 6 years ago
Harshita Walia 6 years ago
Yogita Ingle 6 years ago
Acetone, petrol, perfume etc., being volatile, evaporate very fast when exposed to larger surfaces. When we put some acetone or petrol or perfume on our palm, it evaporates. During evaporation, particles of the liquid absorb energy from the surface of the palm to compensate for the loss of energy, making the surroundings cool. Hence, our palm feels cold when we put some acetone or petrol or perfume on it.
Posted by Kailash Kumar 6 years ago
- 1 answers
Yogita Ingle 6 years ago
Crop variety can be improved by utilizing following methods:
- Finding a good yield crop
- Hybridization: The process of interbreeding between geneticallydivergent plants.
- Introducing a gene to genetically modify the crops by providing desired characteristics to the crops.
- Good quality seeds must be provided to the farmers.
- Taking care to prevent the biotic factors(diseases, insects and nematodes) andabiotic factors (drought, salinity, waterlogging, heat, cold and frost) that can affect the crop growth.
- Shorter maturity of the crops results in more economical variety.
- Attempts must be taken to ensure higher yield.
Posted by Harshit Singh 6 years ago
- 0 answers
Posted by Ayush Dubey 6 years ago
- 1 answers
Gaurav Seth 6 years ago
The to and fro motion of a body along the same path about its mean position is called oscillation
Posted by Prasad Hk 6 years ago
- 2 answers
Avinash Avinash 6 years ago
Posted by Tanu Gurjar 6 years ago
- 1 answers
Yogita Ingle 6 years ago
Lichens are called as dual organisms because they have symbiotic relationship between algae and fungus.
Explanation:
• Lichens are species that grown from the substrate of fungi in an algae environment
• The algae and the fungi are in mutual relationship the algae help them to produce food and the fungus help them to absorb the nutrients
• Symbiotic relationship is that the organisms have mutual support and they help each other and they are beneficiary to each other
• They are of various size and forms and they are divided into thallus and the filament body parts
• Lichens are of variety of colors and this is due to the presence of usnic acid
Posted by Rita Devi 6 years ago
- 2 answers
Avinash Avinash 6 years ago
Yogita Ingle 6 years ago
| Homogeneous mixture | Heterogeneous mixture |
| It has a uniform composition | It has a non-uniform composition |
| It has only one phase | There are two or more phases |
| It can’t be separated out physically | It can be separated out physically |
| ‘homo’ means the same | ‘hetero’ means different |
| Example: a mixture of alcohol and water | Example: a mixture of sodium chloride and sand |
Posted by Arman Khan 6 years ago
- 1 answers
Yogita Ingle 6 years ago
A mixture of sulphur and carbon disulphide is a heterogeneous mixture and shows tyndall effect.
Reason:
In collodial solution, the size of particles are big enough to scatter the light which is known as Tyndall effect .
Posted by Rahul Kumar 6 years ago
- 1 answers
Yogita Ingle 6 years ago
Greenhouse effect is the process by which radiations from the sun are absorbed by the greenhouse gases and not reflected back into space. This insulates the surface of the earth and prevents it from freezing.
Posted by Pappuyadav Pappu 6 years ago
- 0 answers
Posted by Pappuyadav Pappu 6 years ago
- 1 answers
Jeslin Anna Jacob? 6 years ago
Posted by Pappuyadav Pappu 6 years ago
- 2 answers
Avinash Avinash 6 years ago
Yogita Ingle 6 years ago
The cooling in a desert cooler is caused by the evaporation of water. A desert cooler cools better on a hot and dry day because the higher temperature on a hot day increases the rate of evaporation of water and the dryness of air (low humidity of air) also increases the rate of evaporation of water. And due to increased rate of evaporation of water, a desert cooler cools better on a hot and dry day.
Posted by Pappuyadav Pappu 6 years ago
- 1 answers
Yogita Ingle 6 years ago
A mixture of two miscible liquids can be separated by the process of fractional distillation. The separation of two liquids by fractional distillation depends on the difference in their boiling points. Fractional distillation is carried out by using a fractionating column.
Posted by Pappuyadav Pappu 6 years ago
- 0 answers
Posted by Pappuyadav Pappu 6 years ago
- 1 answers
Yogita Ingle 6 years ago
The following immunisation programme is available at the nearest health centre in our locality
(i) Immunisation for infants—DPT, BCG, polio, measles and MMR.
(ii) For children—Typhoid, TT, DT, small pox and TAB.
(iii) For pregnant woman— TT and hepatitis-B. The diseases like typhoid, polio, measles, tetanus are the major health problems in our locality.
To prevent these diseases, our government have initiated expanded immunisation programme all over the country.
Posted by Pappuyadav Pappu 6 years ago
- 0 answers
Posted by Ram Ganesh 6 years ago
- 0 answers
Posted by Krishna Patel 6 years ago
- 1 answers
Yogita Ingle 6 years ago
| Characteristics | Communicable Diseases | Non-communicable diseases |
| Definition | Diseases spread from one to another person. Can be spread through water, air etc | Diseases cannot be transmitted from one to another person |
| Causative | Pathogens that are highly infectious and vectors transmit these diseases | Here, the causative is allergies, malnutrition, illness due to internal factors, lifestyle changes, environmental changes, abnormalities in cell proliferation etc |
| Agent causing infection | Virus, bacteria | No agents |
| Inheritance factor | Cannot be inherited from one generation to another | Can be inherited from generation on |
| Example | AIDS, Typhoid, Tuberculosis, Malaria, Cholera | Allergies, cancer, heart diseases, diabetes |
| Type of disease | As it can develop almost immediately, it is acute | As it develops over a period of time and lasts for long, it is chronic |
| Treatment | Traditional methods/therapies | Surgically or specialized methodologies |
Posted by Saiprasad Kamble 6 years ago
- 2 answers
Avinash Avinash 6 years ago
Yogita Ingle 6 years ago
Pasture is land with herbaceous vegetation cover used for grazing of ungulate livestock as part of a farm or ranch. Prior to the advent of mechanized farming, pasture was the primary source of food for grazing animals such as cattle and horses. It is still used extensively, particularly in arid regions where pasture land is unsuitable for any other agricultural production.Pasture growth can consist of grasses, legumes, other forbs, shrubs or a mixture.
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
Dev King 6 years ago
1Thank You