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Ask QuestionPosted by Leena Saji 5 years, 11 months ago
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Smart World 5 years, 11 months ago
Arman Saifi 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
An eye defect in which a person can able to see distant objects while can't able to see near by objects is known as hypermetropia.
This is also known as long slightedness.
Reasons:
1) Elongation of lens,
2) lens becomes less converging.
It can be corrected by using convex lens to make eye len's more converging.
Jayavel Ramalingam 5 years, 11 months ago
Posted by Surendar Kumar 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG, and IgM.
Posted by Dx Largo 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Axon- long cylindrical structure arising from the cell body. The information from the environment travels through the axon and reaches the next nerve to reach the brain.
Posted by Surendar Kumar 5 years, 11 months ago
- 3 answers
Yogita Ingle 5 years, 11 months ago
Colostrum is a thin, yellowish, opalescent fluid released after birth from the mother’s breast for 2 to 3 days. It is also called foremilk.
Posted by Lalit Pargai 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Lead Nitrate crystals when heated in a dry test tube it gets decomposed and forms Lead Oxide as product and Nitrogen dioxide and Oxygen gases as by-products.
This Nitrogen dioxide {tex}NO_2{/tex} is a brown coloured gas will be evolved from the reaction after it gets processed.
The composition of the Lead Nitrate is {tex}Pb(NO_3)_2{/tex}.
The reaction is:
{tex}2Pb(NO_3)_2 \rightarrow 2PbO + 4NO_2 + O_2{/tex} (in presence of heat).
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Dr. Shreyas Samarth 5 years, 11 months ago
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___ Alone _____ 5 years, 11 months ago
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Posted by ___ Alone _____ 5 years, 11 months ago
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Hargun Singh 5 years, 11 months ago
Shirin .Pvt 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
Gregor Mendel chose pea plant because the garden pea is an ideal subject in the study of genetics for the following reasons:
(i)They grow quickly.
(ii)They have a short life-cycle.
(iii)They are easily self- and cross-pollinated and produces many offspring in one cross.
(iv)They have easily observed characteristics.
Posted by Anand Singh 5 years, 11 months ago
- 1 answers
Meghna Thapar 5 years, 10 months ago
Extraction of Metals:
Different methods are used for extracting metals belonging to category of highly reactive metals, moderately reactive metals and less reactive metals. This is because the extraction of a metal from its concentrated ore is essentially a process of reduction of the metal compound present in the ore. For example: Manganese metal is obtained by the reduction of its oxide with aluminium powder and not carbon. This is because carbon is less reactive than manganese. Carbon, which is a non-metal, is more reactive than zinc and it can be placed just above Zn in the reactivity series. Hence, carbon can reduce the oxides of zinc and all other metals below zinc to form metals. The reactivity of elements differs for different metals.
Extraction of Less Reactive Metals:
The less reactive metals are extracted by the reduction of their oxides by heat alone.
Example: Mercury (II) sulphide ore is roasted in air when mercury (II) oxide is formed. When this mercury (II) oxide is heated to about 300° C, it decomposes to form mercury metal.
Extraction of Moderately Reactive Metals:
The moderately reactive metals in the middle of the reactivity series are extracted by the reduction of their oxides with carbon, aluminium, sodium or calcium.
It is easier to obtain metals from their oxides (by reduction) than from carbonates or sulphides. So, before reduction can be done, the ore is converted into a metal oxide. The concentrated ores can be converted into metal oxides by the process of calcination or roasting.
Calcination is the process in which a carbonate ore is heated strongly in the absence of air to convert it into a metal oxide.
For example: When zinc carbonate is heated strongly in the absence of air, it decomposes to form zinc oxide and carbon dioxide.
Extracting Metals towards the Top of the Activity Series:
Metals high up in the reactivity series are very reactive. These metals have a strong affinity for oxygen. So, oxides of sodium, magnesium, calcium and aluminium cannot be reduced by carbon.
These metals are obtained by electrolytic reduction.
Posted by Kuldeep Kuntal 5 years, 11 months ago
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Rani Mishra ??? 5 years, 11 months ago
Posted by Rishant Rai 5 years, 11 months ago
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Meghna Thapar 5 years, 10 months ago
A switch is meant for the 'on-off' of the device. It is always connected to live wire so that the appliance could be connected to high potential point through the live wire. The neutral wire doesn't have any voltage until it is connected to the live wire. So, it is always better to cut off the supply which is given from the live wire.
Posted by Nannu Singhal 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Communal politics is based on the idea that religion is the principal basis of social community.communalism involves thinking along the following lines.the followers of
a particular religion must belong to one community.
There fundamental interests are the same.Any difference that they may have is irrelevant for community life.
Posted by Vaishnavi Mule 5 years, 11 months ago
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___ Alone _____ 5 years, 11 months ago
Posted by Srishti Singh 5 years, 11 months ago
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Meghna Thapar 5 years, 10 months ago
When a ray of light passes through a prism, it bends towards the base of prism. The angle between incident ray and emergent ray is called angle of deviation.
Posted by Raginee Tiwari 5 years, 11 months ago
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Himali Das 5 years, 11 months ago
Pratik Mundhe 5 years, 11 months ago
Posted by Jhalak Saluja 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
- Each month egg is released by either of the ovary .
- The uterus walls becomes thick and spongy so as to receive the egg and nourish it.
- The walls surrounds with extensive network of blood.
- If The ovum fuses with sperm it leads to pregnancy otherwise if it does not fuses it breaks and come out with blood and mucus which is known as menstuation.
Posted by Aɗoʀŋɘɗ Mʌʋʀƴʌ 5 years, 11 months ago
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Rani Mishra ??? 5 years, 11 months ago
Posted by Manpreet Singh 5 years, 11 months ago
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Shreya Sood 5 years, 11 months ago
1Thank You