Environmental Impact Assessment Studies Questions and Answers

Q: One of the following is very essential activity before execution of any developmental projects :

The essential activity is Environmental Impact Assessment.An EIA predicts the likely effects of a proposed project on the environment and people before it is approved, so that alternatives and mitigation can be considered. In India it is a legal requirement for many categories of project.Environmental auditing checks the performance of an operation that is already running. Biodiversity and demographic surveys may feed into an EIA, but they are not the assessment itself.

Q: One of the following zones of electromagnetic spectrum is used for passive optical remote sensing :

Passive optical remote sensing uses the Visible band.Passive sensors record radiation that comes naturally from the scene, mainly reflected sunlight. The optical region they use is the visible and the nearby infrared, which is why satellite sensors such as those of Landsat and IRS image in visible and near-infrared bands, giving the colour and vegetation information used in ecology.X-rays are absorbed by the atmosphere and are not used for Earth observation. Microwave remote sensing is mostly active (radar sends its own pulse), and although passive microwave radiometers exist, microwaves are not part of the optical region. Radio waves are used for communication rather than optical imaging.

Q: With the advent of Remote Sensing and Geographical Information System, the city planners have begun to use the Indian satellite data. Which one of the following satellite data are useful for such tasks ?

The data used for city planning come from CARTOSAT.ISRO's Cartosat series carries high-resolution panchromatic cameras, with resolution below one metre in the later satellites, and stereo imaging. It is designed for cartography: large-scale mapping, urban and infrastructure planning, cadastral maps and digital elevation models.LANDSAT is an American (NASA/USGS) programme, so it is not Indian satellite data. OCEANSAT observes ocean colour and winds, and RESOURCESAT is aimed at agriculture, forestry and natural resources at coarser resolution.

One of the following is very essential activity before execution of any developmental projects :

A.Biodiversity Surveys
B.Environmental Impact Assessment
C.Environmental Auditing
D.Demographic Surveys

Exam Year(s)

MH SET - 2020, SET Exam - 2020,

Answer: B

The essential activity is Environmental Impact Assessment.

An EIA predicts the likely effects of a proposed project on the environment and people before it is approved, so that alternatives and mitigation can be considered. In India it is a legal requirement for many categories of project.

Environmental auditing checks the performance of an operation that is already running. Biodiversity and demographic surveys may feed into an EIA, but they are not the assessment itself.

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One of the following zones of electromagnetic spectrum is used for passive optical remote sensing :

A.X-Ray
B.Visible band
C.Microwave
D.Radiowave

Exam Year(s)

MH SET - 2023, SET Exam - 2023,

Answer: B

Passive optical remote sensing uses the Visible band.

Passive sensors record radiation that comes naturally from the scene, mainly reflected sunlight. The optical region they use is the visible and the nearby infrared, which is why satellite sensors such as those of Landsat and IRS image in visible and near-infrared bands, giving the colour and vegetation information used in ecology.

X-rays are absorbed by the atmosphere and are not used for Earth observation. Microwave remote sensing is mostly active (radar sends its own pulse), and although passive microwave radiometers exist, microwaves are not part of the optical region. Radio waves are used for communication rather than optical imaging.

Discuss in Forum

With the advent of Remote Sensing and Geographical Information System, the city planners have begun to use the Indian satellite data. Which one of the following satellite data are useful for such tasks ?

A.CARTOSAT
B.LANDSAT
C.OCEANSAT
D.RESOURCESAT

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: A

The data used for city planning come from CARTOSAT.

ISRO's Cartosat series carries high-resolution panchromatic cameras, with resolution below one metre in the later satellites, and stereo imaging. It is designed for cartography: large-scale mapping, urban and infrastructure planning, cadastral maps and digital elevation models.

LANDSAT is an American (NASA/USGS) programme, so it is not Indian satellite data. OCEANSAT observes ocean colour and winds, and RESOURCESAT is aimed at agriculture, forestry and natural resources at coarser resolution.

Discuss in Forum

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