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Which layer of the Earth is divided into tectonic plates?

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Important Questions on Conic Sections

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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Cotyledon of maize grain is called:
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
The hilum is a scar on the:
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Why convection cannot take place in a solid?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Permanent winds blowing toward the equator are called _____.
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone

Assertion: It is hotter over the top of fire than at the same distance on the sides.

Reason: Air surrounding the fire conducts more heat upwards.

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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
State the unit and dimensions of coefficient of convection?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
It is hotter at the same distance over the top of a fire than it is on the side of it, mainly because :
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
In a place near the sea, a breeze blows from the sea to the land in the day time but it blows in the opposite direction at night. Why?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
A liquid of mass m and specific heat c is heated to a temperature 2T. Another liquid of mass m2 and specific heat 2c is heated to a temperature T. If these two liquids are mixed, the resulting temperature of the mixture is
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Trade wind is an example of which of these?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
The equatorial and polar regions of the earth receive unequal solar heat. The convection current arising due to this is called:
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Explain how convection causes trade winds.
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Ventilators are provided in rooms just below the roof. Why?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
An ordinary electric fan does not cool the air; still, it gives comfort in summer. Explain.
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Which method of heat transfer depends on gravity?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
In which of the following process, convection does not takes place primarily?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Explain the role of rotation of earth in the movement of trade winds.
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
In which of the following processes, convection of heat does not take place?
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Two liquids A and B are at 32°C and 24°C. When mixed in equal masses the temperature of the mixture is found to be 28°C . Their specific heats are in the ratio of
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Mathematics>Coordinate Geometry>Conic Sections>Sections of a Cone
Which one of the following processes depends on gravity?