Answer:
Decomposition reaction = Those reactions in which single compound decompose down to give two or more products are called decomposition reaction .
Explanation:
Those reactions in which single compound decompose down to give two or more products are called decomposition reaction .
For the Decomposition reaction to take place , <u><em>a large amount of energy ias needed</em></u>. This is because for decomposition bonds are required to breaks. Hence energy is needed to break the bonds as they have strong force of attraction.
They occur in presence of HEAT , LIGHT , ELECTRICITY.
examples of decomposition reactions are:

Here only one CaCO3 is producing two substances which are : CaO and CO2
This is also known as decompositon of Calcium carbonate and it require a lot of heat energy.

This is also a decomposition reaction , This occur in the presence of sunlight
Answer:
OPTION D,
AS AT THIS PLACE ONLY THIS FACTIR CAN OCCUR..
Parabolic and they use it because light hits your face (the focal point) and gets reflected in the mirror. The concave, or parabolic, shape of the mirror surface concentrates the light beams, intensifying light as it gets closer to the focal point! :)
Answer: a disturbance that transfers energy.
Explanation: