Islam and Christianity are examples of religions introduced to India from outside countries (a).
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The most dangerous characteristic of a hurricane is the storm surge because the ocean water rises along with the storm tide.
D. They do not produce electricity.
Passive solar heating is a technique where the sun's energy
is used for heating spaces. It does not generate electricity but can save substantial
electricity by making use of thermal mass. Materials that have a high density
such as concrete and bricks absorb and store electricity. Along with operable windows
and thermal chimneys, thermal mass is being
utilized to take advantage of sun exposure.
