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Gorangi Chaudhary 5 years, 5 months ago
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Raman Upadhyay 5 years, 5 months ago
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Liv 5 years, 5 months ago
Posted by Ishita Rana 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
pH stands for potential of Hydrogen. It represents the ratio of Hydronium ions (H3O) to Hydroxide ions (OH). It is a measure of acidity and alkalinity of a solution. The pH scale usually ranges from 0 to 14.
Posted by Love Preet 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The categories of contraceptive methods are:
- Barrier method (Condoms)
- Surgical method
- Withdrawal method
- Calendar method
- Hormonal method
- IUCD/Copper T/Loop
Two advantages of adopting preventive methods are:
- Helps in maintaining health of women.
- Helps in preventing STDs especially AIDS.
- Helps in birth control.
- Parents can give more attention to children.
Posted by R.Kamalee R.Kamalee 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Acids when dissolved in water dissociate to form hydronium ion.
HCl(g) → H+(aq) + Cl-(aq)
Posted by Anup Gupta 5 years, 5 months ago
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Posted by Tanveer Singh Chauhan 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
An oxidizing agent (oxidant), gains electrons and is reduced in a chemical reaction. It is also known as electron acceptor. The oxidizing agent is usually in one of its higher possible oxidation states as it will gain electrons and be reduced.
Examples of oxidizing agents are:
- potassium nitrate
- halogens
- nitric acid
A reducing agent (reductant), loses electrons and is oxidized in a chemical reaction. It is typically in one of its lower possible oxidation states and is known as an electron donor. A reducing agent is oxidized because it loses electrons in the redox reaction.
Examples of reducing agents are:
- formic acid
- the earth metals
- sulfite compounds
Lucifer ? Morningstar? 5 years, 5 months ago
Posted by Lucifer ? Morningstar? 5 years, 5 months ago
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Posted by .. .... 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
(1) Implantation : It is the process of after fertilization the attachment of the ovum to the endometrium.
(11) Placenta : Placenta is the connection between mother and embryo. Placenta play the role of respiration, nourishment and excretion of the embryo.
Lucifer ? Morningstar? 5 years, 5 months ago
Posted by Vikshit Kumar 5 years, 5 months ago
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Posted by Sumesh ☺️☺️☺️ 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The flow of energy in food chains is unidirectional. The energy which passes to the herbivores does not come back to the autotrophs. The energy that is captured by the autotrophs does not revert back to the Sun. Therefore, in the food chain, the energy moves progressively through various trophic levels. This energy is no longer available to the previous trophic level. Thus, the flow of energy in a food chain is unidirectional.
The pesticides enter a food chain and subsequently get into our body by the following way:
- Pesticides are sprayed on the crop plants to protect them from the attack of pests. These pesticides when washed away into the soil or water bodies get absorbed by the plants.
- When plants are consumed as food by man or other animals, the pesticides enter the food chain. Since the pesticides are non-biodegradable, these chemicals get accumulated progressively and enter our body.
Posted by Sumesh ☺️☺️☺️ 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The pesticides enter a food chain and subsequently get into our body by the following way:
- Pesticides are sprayed on the crop plants to protect them from the attack of pests. These pesticides when washed away into the soil or water bodies get absorbed by the plants.
- When plants are consumed as food by man or other animals, the pesticides enter the food chain. Since the pesticides are non-biodegradable, these chemicals get accumulated progressively and enter our body.
Posted by Ankit Singh Rajput 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
A group of cells with similar structure and a specific function are collectively called as tissues.
The human heart is the central part of the circulatory system. This muscular organ functions by pumping blood throughout the body.
The major types of tissues found in the human heart include:
- Connective tissue: It binds, connects, supports, and separate tissues or organs from each other.
- Epithelial tissue: It forms a protective covering all over the body including the internal organs.
- Muscle tissue: Heart is made up of a special type of muscle tissue termed as cardiac tissue. These are involuntary and striated muscles which help the heart to pump the blood throughout life.
- Nervous tissue: It controls and coordinates the pumping of the heart.
Posted by Vikshit Kumar 5 years, 4 months ago
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Satender Kumar 1 year, 11 months ago
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Posted by Vikshit Kumar 5 years, 5 months ago
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Kyōka ( Demon Snow ) 5 years, 5 months ago
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Kyōka ( Demon Snow ) 5 years, 5 months ago
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Lucifer?? Morningstar?? 5 years, 5 months ago
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