Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Noman Shaikh 5 years ago
- 2 answers
Yogita Ingle 5 years ago
Nylon, terylene, PET, acrylic, teflon, etc are synthetic fibres.
Posted by Noman Shaikh 5 years ago
- 2 answers
Deepika Rathi 5 years ago
Posted by Suraj Phuke 5 years ago
- 0 answers
Posted by Ayush Raj 5 years ago
- 2 answers
Yogita Ingle 5 years ago
The Golgi apparatus has multiple names such as Golgi complex or Golgi body. The name is given on the name of the scientist, who discovered the organelle, i.e. Camillo Golgi. It is found in all the eukaryotic cells, plants as well as animals. They are membrane-bound organelle present in the cytosol of the cell.
The Golgi body comprises 5 to 8 cup-shaped, series of compartments known as cisternae. Cisternae is a flattened, disk-shaped, stacked pouches that make up the Golgi apparatus. A Golgi stack mostly contains 4 to 8 cisternae. However, ~60 cisternae are found in some protists. A mammalian cell contains ~40 to 100 stacks of cisternae.
Suraj Phuke 5 years ago
Posted by Hemsuta S.B 5 years ago
- 1 answers
Piyush Kumar 5 years ago
Posted by Ganesh Parlapu 5 years ago
- 3 answers
Hemsuta S.B 5 years ago
Satyam Jha 5 years ago
Posted by Mansi Shinde 5 years ago
- 1 answers
Posted by Tushar Ku. Patra 5 years ago
- 4 answers
Hemsuta S.B 5 years ago
Piyush Kumar 5 years ago
Harshjot Singh Mander 5 years ago
Posted by Dharmendra Sahu 5 years ago
- 2 answers
Mansi Shinde 5 years ago
Posted by Dharmendra Sahu 5 years ago
- 3 answers
Yogita Ingle 5 years ago
Tool used for ploughing . It is made of iron/ wood. It is pulled by a pair of animals like cows/ oxen/ horses and operated by the farmer through the handle. It has 3 important parts:
- Ploughshare: strong triangular iron strip
- Plough shaft: long log of wood
- Beam: stand placed on animals’ neck
Posted by Dharmendra Sahu 5 years ago
- 3 answers
Mansi Shinde 5 years ago
Dilpreet Kaur Dilpreet Kaur 5 years ago
Account Deleted 5 years ago
Posted by Dharmendra Sahu 5 years ago
- 1 answers
Meghna Thapar 4 years, 10 months ago
The definition of implement is a tool that is used to perform a job. A plow is an example of a farm implement. To implement is defined as to put something into effect. An example of implement is a manager enforcing a new set of procedures.
Posted by Dharmendra Sahu 5 years ago
- 1 answers
Meghna Thapar 4 years, 10 months ago
Vegetative propagation is often used when the crop plants either do not produce seeds or when the seeds produced are not viable or are of long dormancy. The method relies on the use of pieces of vegetative plant parts such as stems, leaves, or roots to perpetuate the parent plants. These organs have buds that give rise to new individuals. Food crops such as cassava, sweet potato, sugarcane, pineapple, banana, onion, etc. are propagated vegetatively.
Posted by Dharmendra Sahu 5 years ago
- 1 answers
Posted by David Man 5 years ago
- 1 answers
Posted by Hemlata Patil 5 years ago
- 4 answers
Piyush Kumar 5 years ago
Posted by Noman Shaikh 5 years ago
- 2 answers
Hemlata Patil 5 years ago
Meghna Thapar 5 years ago
Algae are plant like while protozoa are animal like because some algae are autotrophs which means they can photosynthesis like plants because they contain chlorophyll and protozoa are heterotrophs as are animals. Animal-like protists are commonly called protozoa (singular, protozoan). Most protozoa consist of a single cell. They are animal-like because they are heterotrophs, and are capable of moving. Although protozoa are not animals, they are thought to be the ancestors of animals.
Posted by Pragya Bharti 5 years ago
- 4 answers
Yogita Ingle 5 years ago
Curd or dahi is a dairy product which is made by curdling milk with edible acidic substance like lemon juice, vinegar and even curd itself.
Yogurt, on the other hand, is created by bacterial fermentation of milk. To make yogurt, yogurt culture consisting Lactobacillus bulgaricus and Streptococcus thermophiles is used.
Posted by Amarpreetsingh Randhawa 5 years ago
- 0 answers
Posted by Samarsinh Mulik 5 years ago
- 1 answers
Posted by Dini Dinesh 5 years ago
- 4 answers
Yogita Ingle 5 years ago
(i) Manures are organic substances while fertilisers are chemical substances.
(ii) Manures are prepared in fields while fertilisers are prepared in factories.
(iii) Manures contain all the nutrients while fertilisers are rich in certain nutrients.
(iv) Manures provide humus while fertilisers do not provide any humus.
Piyush Nandi 5 years ago
Posted by Atul Maurya Maurya 5 years ago
- 4 answers
Yogita Ingle 5 years ago
Protozoa:
- These are unicellular microscopic organisms similar to animals that can move about to capture food and are heterotrophic in nature.
- They are mostly aquatic in nature.
- Amoeba, paramecium are some examples of protozoa.
Posted by Grease Kashyap 5 years ago
- 1 answers
Gaurav Seth 5 years ago
| Metals | Non-metals |
| Metals are electro-positive. | Non-metals are electronegative. |
| Metals reacts with oxygen to form basic oxides. 4Na+O2→2Na2O |
Non-metals react with oxygen to form neutral or acidic oxide.
C+O2→CO2 |
| Metal oxides and hydroxides bonds have ionic bonds. | Non-metal oxides and hydroxides have covalent bonds. |
| Metals react with water to form hydroxide and hydrogen.
2Na+2H2O→2NaOH+H2 |
Non-metals do not react with water. |
| Metals react with dilute acids to form salt and H2. | Non-metals do not react with dilute acid and they can not displace hydrogen. |
| Metals react as reducing agent by donating electrons.
Na→Na++e− |
Non-metals are oxidizing agents that can gain the electrons.
Cl2+e−→Cl− |
Posted by Anamika Thakur 5 years ago
- 1 answers
Meghna Thapar 5 years ago
Corrosion is a process through which metals in manufactured states return to their natural oxidation states. This process is a reduction-oxidation reaction in which the metal is being oxidized by its surroundings, often the oxygen in air. This reaction is both spontaneous and electrochemically favored.
Posted by Kavya Sharma 5 years ago
- 1 answers
Yogita Ingle 5 years ago
(a) Physical Properties of Metals
• Lustre: Metals in the pure state generally shine. The shine on the metallic surface is called the metallic lustre.
• Malleability: The property of metals by which they can be beaten into thin sheets is known as malleability.
For example, silver metal is beaten to make silver foil used for decorating sweets.
• Ductility: It is one of the properties of metals by virtue of which they can be drawn into wires. For example, copper and iron can be drawn into wires.
• Conductivity: Metals are good conductor of heat and electricity. Heat and electricity can pass through them.
• Sonorous: Metals produce a ringing sound when struck hard. So, they are called sonorous.
• Solid: All metals are solid except Mercury, the only metal which is liquid at room temperate. We can cut sodium (Na) and potassium (K) metals with the help of a knife. Mercury, sodium and potassium are exceptional metals. Examples of metals: iron, copper, gold, aluminium, silver, calcium etc.
(b) Physical Properties of Non-Metals
• Solid non-metals are soft and dull. They break down into a powdery mass on tapping with a hammer. For example, coal and sulphur.
• Non-metals are not sonorous.
• They are poor conductors of heat and electricity.
• They do not possess metallic lusture.
• They possess no malleability and ductility.
Examples of non-metals: phosphorus, sulphur, carbon, oxygen etc.
Posted by Harshpreet Singh 5 years ago
- 2 answers
Posted by Nicky Singh 5 years ago
- 4 answers
Sam Evil 5 years ago
Kavya Sharma 5 years ago
Posted by Sarthak Paliwal 5 years ago
- 3 answers
Yogita Ingle 5 years ago
LPG is considered as a better fuel than coal because it has a higher calorific value, while burning it does not produce any smoke.
Posted by Rinshu Rai 5 years ago
- 2 answers
Kavya Sharma 5 years ago
Yogita Ingle 5 years ago
The disease caused due to the presence of a large number of micro-organisms (like bacteria and fungi) in the food, or due to the presence of toxic substances in food, formed by the action of micro-organisms, is called food poisoning. Food poisoning occurs due to the consumption of food spoilt by some micro-organisms.
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
Ekampreet Singh Talwar 5 years ago
1Thank You