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Ask QuestionPosted by Dev Naveen Arora 5 years, 8 months ago
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Posted by Palak K 5 years, 8 months ago
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Md Ammar Azam 5 years, 8 months ago
Yogita Ingle 5 years, 8 months ago
Neil Armstrong was a NASA astronaut most famous for being the first person to walk on the moon, on July 20, 1969. Armstrong also flew on NASA's Gemini 8 mission in 1966.
Posted by Rajnish Dubey 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
The term food chain refers to the sequence of events in an ecosystem, where one organism eats another and then is eaten by another organism. It starts with the primary source like the sun or hydrothermal vents where producers make food, continues with consumers or animals who eat the food, and ends with the top predator.
<div id="article_body">A food chain is a sequence of events in nature in which one organism eats another, and is then eaten by another in turn. All food chains start with the primary source, either the sun or chemicals produced by hydrothermal vents deep in the ocean. When an organism uses those sources to make food, it starts the food chain.
</div>Posted by Dinesh Singh 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Nitrogen fixation is the essential biological process and the initial stage of the nitrogen cycle. In this process, nitrogen in the atmosphere is converted into ammonia (another form of nitrogen) by certain bacterial species like Rhizobium, Azotobacter, etc. and by other natural phenomena.
Plants are the main of the sources of food. The nutrients obtained from plants are synthesized by plants using various elements which they obtain from the atmosphere as well as from the soil. This group of elements includes nitrogen as well. Plants obtain nitrogen from the soil through the process of protein synthesis. Unlike carbon dioxide and oxygen, atmospheric nitrogen cannot be obtained through stomata of leaves. Because the concentration of nitrogen gas present in the atmosphere can not be directly used by plants and also the concentration of the usable form of nitrogen in the atmosphere is very less. There are certain bacteria and some natural phenomenon which help in Nitrogen fixation.
Posted by Ram Parkash 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
3m + 9m + 6 =0
12 m + 6 = 0
12m = -6
m = -6/12
m = -1/2
Posted by Vijay Berwal 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Speed of the light is much higher than the speed of the sound. In normal conditions, the speed of the sound in air is just 332 m/s, but the speed of the light is 3×108 m/s. We can also observe this difference in our daily life during the phenomenon of lightning. When lightning occurs in the sky, the sound of the lightning comes after, but before we are able to see it in the sky. This proves that light waves travel faster and reach to us first and sound waves are slow, so we hear the sound of lightning later.
Posted by Satyam Mallick 5 years, 8 months ago
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Ritesh Yadav 5 years, 8 months ago
Yogita Ingle 5 years, 8 months ago
To find the cube root of a given number, proceed as follows:
Step I. Express the given number as the product of primes.
Step II. Make groups in triplets of the same prime.
Step III. Find the product of primes, choosing one from each triplet.
Step IV. This product is the required cube root of the given number.
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Yogita Ingle 5 years, 8 months ago
The British believed that by preserving official documents it would have been easier for them or to know about the decisions taken in the past. According to the British, writing was more important than speaking as the documents in archives and museums can be utilized for reference at a much later period whenever required for studying or debating.
Posted by Agnesh Kindo 5 years, 8 months ago
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Meghna Thapar 5 years, 6 months ago
Before sowing the seeds, it is necessary to loosen and turn the soil in the fields as to break it to the size of the grains which is done with the help of three main implements or tools – plough, hoe and cultivator.
- Plough: Plough is a large agricultural implement which is used for ploughing or tilling in the fields. The traditionally wooden plough consists of a long log of wood called a plough shaft having a handle at its one end. Below the handle is a strong triangular iron strip called ploughshare. The other end of the ploughshaft can be attached to a wooden beam which is fixed at the right angles to the ploughshaft.
- Hoe: It is an agricultural implement used for removing weeds, and loosening and turning the soil. It consists of a long rod of wood or iron. There is a handle at one end of the hoe. A strong, broad and bent plate of iron is fixed below the handle and acts like a blade. The other end of hoe has a beam which is put on the neck of bullocks. Thus, a hoe is also pulled by animals like bullocks. Thus, it is a kind of modified plough.
- Cultivator: The cultivator is a tractor driven agricultural implement which is used for loosening and turning the soil in the fields quickly. It has many ploughshares which can dig into the soil at the same time, loosen it and turn it. Thus, the field can be ploughed in a short duration of time.
Posted by Gurpreet Singh 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
| Kharif Crop | Rabi Crop |
| Sown when the rainy season begins, i.e. between April and May. | Sown when the winter season ends, i.e. between September and October. |
| Also known as monsoon crops. | Also known as winter crops. |
| Affected by rainfall pattern. | Not affected by rainfall pattern. |
| Requires hot weather and a large amount of water to grow. | Requires warm climate for seed germination and cold climate to grow. |
| The harvesting month is between September-October. | The harvesting month is between March-April. |
| Maize, rice, cotton, groundnut are Kharif crops. | Peas, wheat, gram and barley are rabi crops. |
Posted by Sherry Singhal 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
In converting the temperature from Fahrenheit to Celsius the formula is, C = (5/9)(F – 32);
Posted by नितीश कूमार 5 years, 8 months ago
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Posted by Prajwal Bhosale 5 years, 8 months ago
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Mamatha D Mamatha D 5 years, 8 months ago
Yogita Ingle 5 years, 8 months ago
Exponents are also called Powers or Indices
The exponent of a number says how many times to use the number in a multiplication.
In this example: 82 = 8 × 8 = 64
Posted by Madhu Shandilya 5 years, 8 months ago
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Posted by Vishwash Modi 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Mercury pollution is the pollution caused by the release of mercury from the mercury products or emissions from coal-burning power plants in air, water or land. Mercury pollution results in neurological and behavioural disorders in humans. Insomnia, memory loss, headaches, tremors are some of the symptoms of mercury pollution.
Posted by Vishwash Modi 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Pollution need not always be caused by chemical substances such as particulates (like smoke and dust). Forms of energy such as sound, heat or light can also cause pollution. These substances that cause pollution are called pollutants.
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Yogita Ingle 5 years, 8 months ago
1Thank You