Posts

Showing posts from April, 2026

विश्व के प्रमुख घास का मैदान

 प्रमुख घास के मैदान उष्णकटिबंधीय घास के मैदान       घास                                         स्थित   1. लानोस                  कोलंबिया   वेनेजुएला 2. कंपोज                    ब्राज़ील 3  सवाना                   अफ्रीका   4. पार्कलैंड।                ऑस्ट्रेलिया  5. सेल्वाश।               अमेजन बेसिन,(दक्षिण                                                   अमेरिका  शीतोष्ण कटिबंधीय घास के मैदान      घास               ...
Post a Comment
Read more

What is different farming revolution in india.

List of different farming   revolution. 1. Green revolution  -  food grain production                                                        2.  White revolution -        milk  production . 3. Blue revolution     -      fish   production . 4. Brown revolution  -  fertilizer  production.   5. Silver revolution-        Egg  production. 6. Yellow revolution -    oilseeds production  7. Black revolution -   petroleum   production. 8. Red revolution -  tomatoes and  meat                                                          ...
Post a Comment
Read more

Why curing is required in construction

Image
Why curing is required in construction.                         Curing  Curing is the process of maintaining adequate moisture, temperature, and time after concrete is placed so it can properly gain strength and durability . Here’s why it’s important: Proper hydration of cement Cement reacts with water (hydration). Without enough moisture, this reaction stops early → weak concrete. Increases strength Well-cured concrete becomes much stronger over time. Poor curing can reduce strength significantly. Prevents cracks Rapid drying causes shrinkage cracks. Curing keeps the surface moist and reduces cracking. Improves durability Proper curing makes concrete more resistant to weathering, chemicals, and wear. Reduces permeability It makes concrete denser, so less water and harmful substances can enter. Types of curing There are several methods used depending on site conditions: 1. Water cur...
Post a Comment
Read more

Popular posts from this blog

What is different farming revolution in india.

List of different farming   revolution. 1. Green revolution  -  food grain production                                                        2.  White revolution -        milk  production . 3. Blue revolution     -      fish   production . 4. Brown revolution  -  fertilizer  production.   5. Silver revolution-        Egg  production. 6. Yellow revolution -    oilseeds production  7. Black revolution -   petroleum   production. 8. Red revolution -  tomatoes and  meat                                                          ...
Read more

comparison between acid and base

Image
                                   acid                                    1.  Acid is sour in taste,  Base is bitter in taste. 2.   Acid turns blue litmus to red,  Bases turns red litmus to  blue. 3.  Acis PH is  less than  7,  Base  PH is greater than  7.  4.   It  is produces   H+ ion ( hydrogen ion) solution, Base  produces  OH ion  in  slution. 5.   Corrosive to metals,  Base is slippery to touch . 6.   React with  base  to form salt  and water, React with acid  to form salt and water. 7.  Example of acid- HCL, H2SO4.  Example of base NAOH,KOH. 8.  Conducts electricity in solution , in base  is also conducts electricity in  ...
Read more

What is tidal energy, advantage, disadvantage, challenges

  What is tidal energy. Tidal energy is a form of renewable energy generated from the movement of tides, driven primarily by the gravitational pull of the moon and the sun on Earth's oceans. This energy can be harnessed through various technologies, such as tidal stream generators or tidal barrages, to produce electricity. The energy is most effectively captured in coastal areas where tidal changes are significant, and it is considered a predictable and environmentally friendly source of power. How to work tidal energy. Tidal energy is a form of renewable energy that harnesses the kinetic and potential energy of tidal movements caused by the gravitational pull of the moon and the sun on Earth's oceans. The process involves several steps. Firstly, tidal energy systems, such as tidal barrages, tidal stream generators, or tidal lagoons, are strategically installed in coastal areas where tidal ranges or tidal currents are strong. Tidal barrages use a dam-like structure...
Read more