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Yogita Ingle 5 years, 10 months ago
Theory of plate tectonics lays down that the crust of the Earth has been formed out of seven major and some minor plates. The movement of plates beneath the surface of the Earth creates tension resulting into folding, faulting and volcanic activities.
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The mouth parts are at the anterior end of the head. The mouth parts consist of a labrum (upper lip), a pair of mandibles, a pair of maxillae and a labium (lower lip). A median flexible lobe lies in the cavity which is enclosed by the mouth parts. This lobe acts as tongue (hypopharynx).
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Posted by Ramanamma Ch 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
Sodium ions are primarily found inside the human cells such as Nerve Cells. They regulate the flow of water across the membrane.
They are needed for transport of sugars and amino acids into the cells.
Sodium maintains the electrolyte balance in the body.
Potassium ions are primarily found inside the cell.
Potassium ions maintain the osmolarity (the concentration of a solution expressed as the total number of solute particles per litre) of the cell. They also regulate the opening and the closing of the stomata.
Potassium ions acts as cofactor for certain enzymes such as pyruvate kinase.
Potassium is important in heart function and in skeleton and muscle contraction.
Posted by Subhasundar Baishya 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
L.H.S=tan 6 ° tan 42 ° tan 66 ° tan 78 °
now ,
Use Trigonometric Identity
tanx * tan(60° - x) * tan(60° + x) = tan(3x)
set x = 6
tan6° tan54° tan66° = tan18° .................... ((1))
Similarly, set x = 18°
tan18° tan42° tan78° = tan54° ...................... ((2))
((1)) * ((2)):
tan6° * tan54° * tan66° * tan18° * tan42° * tan78° = tan18° * tan54°
tan6° * tan66° * tan42° * tan78° = 1
Hence
L.H.S=R.H.S
Posted by Aryan Singh 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
The central problems of the economy arises because the resources in the economy are scarce and human wants are unlimited. Therefore, there is need for an efficient relationship between both the factors.
The central problem of "How to produce?" which is faced by the economy where the economy consider either labour intensive techniques or capital intensive techniques for the production of goods and services in the economy depending upon the available resources in the economy.
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Sneha Kashyap 4 years, 9 months ago
3Thank You