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Posted by Prabhat Choudhary 5 years, 2 months ago
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Dhanashree Charwadikar 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
- The process by which plants make their own food in the presence of sunlight, carbon-dioxide present in air, water, minerals and chlorophyll present in leaves is termed as photosynthesis.
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Posted by Saumya Urmaliya 5 years, 2 months ago
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Meghna Thapar 5 years, 1 month ago
A survey is an evaluation of work areas, instruments and apparatus, floors, sinks, faucet handles, drawer fronts, doorknobs, telephones, light switches, refrigerators and other surfaces for the presence of radioactive contamination.
The following methods can be used to perform a survey:
- Survey meter scan
- Wipe test
What is contamination?
There are two types of contamination, “removable” and “fixed.”
Removable contamination can be wiped off a surface or object, like dust on a piece of furniture. Removable contamination can be discovered by wipe tests and, in some situations, by use of a survey meter. If contamination is present in large enough quantities and is removable, it may also be detected with a survey meter when a wipe from the surface is placed near the probe.
Fixed contamination has become bound by chemical or other means to the surface upon which it was deposited. This form of contamination can only be detected by a survey meter. Because it is fixed to the surface, a wipe test will indicate no activity. A meter survey may indicate whether large quantities are present on the surface.
Posted by Saumya Urmaliya 5 years, 2 months ago
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Meghna Thapar 5 years, 1 month ago
Waterborne diseases are conditions caused by pathogenic micro-organisms that are transmitted in water. These diseases can be spread while bathing, washing, drinking water, or by eating food exposed to contaminated water. While diarrhea and vomiting are the most commonly reported symptoms of waterborne illness, other symptoms can include skin, ear, respiratory, or eye problems.
The number of lives impacted and lost to waterborne diseases is highlighted under the "Those Impacted" section.
Waterborne diseases are impacted by a country's economy and also impact the economy by being costly to deal with. This described more in-depth in the "socioeconomic impact" section.
The term waterborne disease is reserved largely for infections that predominantly are transmitted through contact with or consumption of infected water. Trivially, many infections may be transmitted by microbes or parasites that accidentally, possibly as a result of exceptional circumstances, have entered the water, but the fact that there might be an occasional freak infection need not mean that it is useful to categorize the resulting disease as "waterborne". Nor is it common practice to refer to diseases such as malaria as "waterborne" just because mosquitoes have aquatic phases in their life cycles, or because treating the water they inhabit happens to be an effective strategy in control of the mosquitoes that are the vectors.
Posted by Dyaneshwari Dhaware 5 years, 2 months ago
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Posted by Liya Fathima 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Substances that are used to indicate whether a substance is acid or a base are known as indicators. They change their colour on addition of a solution containing an acidic or a basic substance. In our day to day life we get to see many examples where indicators change their colour when comes in contact with acid or base. For instance, while washing clothes if a shirt having a spot of curry turns to reddish brown when comes in contact with the detergent soap but soon disappears when washed thoroughly. This is due to the presence of base in detergent that changes the colour of the turmeric indicator.
There are several types of indicators used in our day to day life. Some of them are litmus paper or solution, phenolphthalein, China rose.
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Posted by Divyansh Mishra 5 years, 2 months ago
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Nihal Mehta 5 years, 2 months ago
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A typhoon is a mature tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere
Posted by Priyanshi Pandey 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
- Human beings have complex structures for the complete process of nutrition involving the following steps ingestion, digestion, and egestion of food while Amoeba has a simple process in which it engulfs the food with the help of pseudopodia and traps it in food vacuoles.
- Humans are multicellular and amoeba is a unicellular organism.
Posted by Divyansh Mishra 5 years, 2 months ago
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If photosynthesis does not occur in plants then plants cannot synthesize the food. This causes the mbalanv=ce in the environment. The plants will not produce oxygen and then no animal life will be able to survive due to the absence of oxygen. We will not get oxygen, food, and life on this planet will be extinct.
Posted by Priyanshi Pandey 5 years, 2 months ago
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Posted by Devanshu Kumar 5 years, 2 months ago
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Akshitha Gundu 5 years, 2 months ago
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The ability of the instrument to measure the accurate value is known as accuracy. In other words, the closeness of the measured value to a standard or true value. Accuracy is obtained by taking small readings. The small reading reduces the error of the calculation.
Posted by Aanya Doda 5 years, 2 months ago
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Hindu ?? 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Bases change the colour of litmus paper to blue. As the colour of blue litmus paper is not affected, the solution must be basic. If the solution is neutral, even then colour of litmus will not change.
Posted by Nisha Kumari 5 years, 2 months ago
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Nihal Mehta 5 years, 2 months ago
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A Cyclone is a large scale air mass that rotates around strong centers of low pressure.
- Water vapors are formed when water is heated.
- This heat is released to atmosphere when water vapors convert to water during rains.
- The heat released, warms the air around and makes it to move up. This also results in decreased air pressure.
- Hence, cooler air from surrounding rushes to take the warm air’s place.
- This repeats till a low pressure system with surrounding high speed winds is created. This is called a Cyclone.
- Cyclone depends on wind speed, direction, temperature and humidity.
Cyclones are also called Hurricane in USA and Typhoon in Japan and Philippines
Posted by Nisha Kumari 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
The air that we breathe is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). The other gases that are present in small quantities are: Carbon dioxide (0.03%), Argon (0.93%) and Others ( helium, hydrogen, ozone). Tiny dust particles are also present in the air, apart from the above gases.
Posted by Sara Punia 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
The waste materials produced during the metabolic activities are toxic to the body and must not be accumulated inside and therefore it has to be excreted out from the body by the process of excretion.
Posted by Nilakshika Rautela 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
The football gets inflated because the air filled in it exerts pressure. ... Moving air or wind exerts a force or pressure on the objects on which it strikes. It is due the pressure exerted by moving air or wind that the leaves of the trees, flags and banners flutter when the wind is blowing.
Posted by Abhinash Raulo 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Following are the three layers of the Earth:
1. Crust: It is the outermost layer of the Earth's surface. It extends from 5 to 8 kilometres beneath the oceans and about 35 kilometres beneath the continental masses.
2. Mantle: It is the layer that lies below the crust. The thickness of mantle is 2,900 kilometres.
3. Core: It is the innermost layer of the Earth and is 3,500-kilometres thick.
Posted by S Balamani Kanta Reddy 8A 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
White blood cells-
* Contain nucleus, some white blood cells contain two to three lobes of nucleus.
* Fight against germs and foreign infectious organisms and kill the organisms entering the body and thus protect the body.
Posted by Deepak Singh 5 years, 2 months ago
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Posted by Jayant Kumar 5 years, 2 months ago
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Posted by Shagun Thakur 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals.
Gaurav Seth 5 years, 2 months ago
Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas.
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Ishika Singh 5 years, 2 months ago
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