Which of these satellites will be helpful in disaster management 1 Navigation satellites 2 Communica...........

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Which of these satellites will be helpful in disaster management ?

1.Navigation satellites

2.Communication satellites

3.Earth observation satellites

Select the correct answer using the codes below.

1 and 3 only

1 and 2 only

2 and 3 only

1 ,2 and 3

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Explanation:

Statement 1: These satellites help track subjects and their locations or even track incoming hazards.
Statement 3: One of the elements on which the space based Disaster Management Support (DMS) systems have been built is emergency communications systems. The DMS programme of ISRO/DOS, a convergence of space communications and remote sensing capabilities, is an effort to have technologically robust and a compatible system, which could strengthen India’s resolves towards disaster management. Remote sensing is particularly is useful in hazard mapping and early warning.
Statement 2: For e.g. the INSAT satellite system is one of the largest domestic communication satellite systems providing regular services in the areas of telecommunications, business & personal communication, broadcasting, and weather forecasting & meteorological services. Today, newer initiatives have been taken to expand the INSAT applications to newer areas like Tele-education, Tele- medicine, Village Resource Centre (VRC), Disaster Management Support (DMS) etc.,

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