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Question & Answer Forum

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Agam answered 1 year(s) , 5 month(s) ago

Explain the life cycle of silk moth?

Ans: Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk.
Life cycle of a silk moth :


1. Egg →2.First stage of larvae→3.Second stage...

Asked by Sneha

Apr 30

  • 3 Answers
  • 17 Likes
  • 83896 Views
Syeda answered 1 year(s) , 8 month(s) ago

Life cycle of silk moth

Ans: Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk.
Life cycle of a silk moth:


1. Egg →2.First stage of larvae→3.Second stage...

Asked by Rohit

Feb 17

  • 4 Answers
  • 16 Likes
  • 64111 Views
Arpita answered 4 year(s) , 8 month(s) ago

Wool production.

there are six steps by which wool is obtained form sheep. Step 1: shearing The process of removing hair from the body of a sheep is called shearing Step 2: scouring The process of washing the fleece of sheep to...

  • 2 Answers
  • 5 Likes
  • 35648 Views
Agam answered 1 year(s) , 6 month(s) ago

1. why is earthworm called farmers friend ?

Answer.


    Earthworm is called Farmers friend because nearly it can consume all biodegradable materials and convert it into Rich Manure. Farmers use earthworms for making manure this pr...

Asked by Naina

Jan 20

  • 3 Answers
  • 7 Likes
  • 31384 Views
Rahul answered 1 year(s) ago

Rust of iron is a physical change or a chemical change

The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide....

Asked by Yash

Sep 4

  • 1 Answer
  • 3 Likes
  • 28536 Views
manvir answered 1 year(s) , 6 month(s) ago

what is the difference between 2O and O2?

Ans:  Two atoms of oxygen element are represented as ‘2O’. The two oxygen atoms are unreactive state and are unstable readily reacts and form molecules.
O₂ represents...

Asked by Ankit

Jan 16

  • 11 Answers
  • 9 Likes
  • 27817 Views
Agam answered 1 year(s) , 5 month(s) ago

Differences between acids and bases

Acid is sour in taste while base are bitter in taste and fee l soapy on running it Acids turn Blue litmus to red , turmeric solution to blue , and China rose solution to magenta While Base turns red litmus to b...

Asked by Vivek

Aug 1

  • 16 Answers
  • 2 Likes
  • 19551 Views
Syeda answered 1 year(s) , 7 month(s) ago

Explain why rusting of iron object is faster in coastal area than desert?

Rusting of iron occurs only if iron comes in contact with moist air. In coastal areas, air contains high percentage of moisture because of sea or ocean, while in deserts air is dry and hot. As the percentage

...

Asked by Nanditha

Feb 19

  • 4 Answers
  • 4 Likes
  • 17260 Views
Swathi answered 3 year(s) , 11 month(s) ago

Explain the anomalous expansion of water ?

Anomalous expansion of water: water has a unique property of anomalous expansion. When water is cooled from room temperature it first contracts in volume and becomes increasingly dense as do ot...

Asked by Yash

Feb 18

  • 1 Answer
  • 2 Likes
  • 17168 Views
Syeda answered 1 year(s) , 7 month(s) ago

All alkalies are bases but all bases are not alkalies. Explain this statement

A base is a substance that reacts with acids and neutrlize them. Some bases are soluble in water some are insoluble. Soluble bases are called alkalies.
For example copper oxide does not dissolve in water...

Asked by Sanjeev

May 15

  • 2 Answers
  • 1 Like
  • 16763 Views
Swathi answered 3 year(s) , 7 month(s) ago

what is percolation and how to find the percolation rate?

  Percolation rate of water in soil:  The phenomenon of absorption of water by soil is termed as percolation. The rate of absorption is different for different types of soils. The rate of abso...

  • 1 Answer
  • 4 Likes
  • 15574 Views
Syeda answered 1 year(s) , 8 month(s) ago

Why does coconut oil become solid during winter season ?

Its freezing point high which causes it to freeze in winters.

Asked by Suriya

Feb 23

  • 5 Answers
  • 0 Like
  • 14500 Views
Syeda answered 10 month(s) , 2 day(s) ago

name some natural indicators?

Answer.

Turmric,litmus,china rose etc are some natural indicators.

Asked by Ashely

Jul 20

  • 5 Answers
  • 1 Like
  • 14078 Views
Seema varghese answered 5 year(s) , 4 month(s) ago

how crystals of copper sulphate are prepared?

Ans: To prepare crystals of copper sulphate.
Required items: China dish, Glass rod, Wash bottle, Copper sulphate, Burner, 250 ml beaker, Wire gauze, Tripod stand,  wat...

Asked by Nabanita

Aug 21

  • 2 Answers
  • 2 Likes
  • 12122 Views
Satyanarayana answered 4 year(s) , 10 month(s) ago

CRYSTALLIZATION

Ans: The process of formation of solid crystals from a homogeneous solution is called crystallization. It is a physical change.
Ex: Formation of Copper sulphate crystals.
Take s...

Asked by Kopal

Mar 13

  • 1 Answer
  • 0 Like
  • 11408 Views
Swathi answered 3 year(s) , 8 month(s) ago

What happens when Acetic acid reacts with calcium hydroxide?

When acetic acid reacts with calcium hydroxide, calcium acetate and water are formed.
2CH 3COOH + Ca(OH) 2 → Ca (CH3 COO -) 2 + 2H 2O

Asked by Sanjeev

May 15

  • 1 Answer
  • 3 Likes
  • 11324 Views
Rahul answered 4 year(s) , 9 month(s) ago

WATER CYCLE

Ans: Water cycle is the cyclic movement of water from the atmosphere to the earth and back to the atmosphere through various processes.  This constant, never ending circulation of water...

Asked by Jefin jacob

Apr 16

  • 4 Answers
  • 1 Like
  • 10966 Views
Ghayathri answered 11 month(s) , 19 day(s) ago

Bawris

Bawri is an indian traditional way of collecting water . Bawri fell into disuse and garbage started piling in these reservoirs . However , because of the acute water shortage , people in these areas have to re-...

Asked by Rajani

Oct 30

  • 3 Answers
  • 3 Likes
  • 10892 Views
Syeda answered 1 year(s) , 7 month(s) ago

RAYON IS KNOWN AS REGENERATED FIBRE . WHY ?

Answer.

Rayon is known as regenerated fibre because it is manufactured from natural resources like cellulose present in wood pulp.

Asked by Mehar prem

Mar 4

  • 3 Answers
  • 0 Like
  • 10802 Views
Swathi answered 4 year(s) , 5 month(s) ago

Explain, with examples, why we find animals of certain kind living in particular climatic conditions.

Q1  Explain, with examples, why we find animals of certain kind living in particular climatic conditions.

Answer: Climate has an intense effect on all living organisms. Animals of certain kind li...

Asked by Aryan

Aug 11

  • 1 Answer
  • 4 Likes
  • 10703 Views
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