Start learning →

State PSC Environment & Ecology — practice questions — page 6

Explore 446 free Environment & Ecology questions in State PSC Geography. Open each question or exercise to read its content, reference answers and available explanation.

Practise Environment & Ecology with Quill →

Environment & Ecology questions and exercises with answers

Showing questions 151–180 of 446.

Which gas is transparent to incoming solar radiation but opaque to outgoing terrestrial radiation?Read the answer and worked solution →The rise in carbon dioxide in recent decades is mainly due to:Read the answer and worked solution →Ozone is found between which heights above the earth?Read the answer and worked solution →Ozone acts as a filter absorbing which rays from the sun?Read the answer and worked solution →In the warm wet tropics, water vapour may make up what share of air by volume?Read the answer and worked solution →Water vapour keeps the earth neither too cold nor too hot, acting like a:Read the answer and worked solution →Dust and salt particles act as which kind of nuclei for cloud formation?Read the answer and worked solution →Dust particles are most concentrated in which regions?Read the answer and worked solution →Based on temperature, the atmosphere is divided into how many layers?Read the answer and worked solution →The average height of the troposphere is:Read the answer and worked solution →The troposphere is thickest at the equator, reaching about:Read the answer and worked solution →In the troposphere, temperature falls by 1 degree C for every:Read the answer and worked solution →The zone separating the troposphere from the stratosphere is the:Read the answer and worked solution →The air temperature at the tropopause over the equator is about:Read the answer and worked solution →The stratosphere extends up to a height of about:Read the answer and worked solution →Which atmospheric layer contains the ozone layer?Read the answer and worked solution →The mesosphere extends up to a height of about:Read the answer and worked solution →Radio waves transmitted from the earth are reflected back by the:Read the answer and worked solution →The ionosphere lies between which heights?Read the answer and worked solution →Catch the atmospheric layersRead the answer and worked solution →Pop the weather elementsRead the answer and worked solution →Run the layer heightsRead the answer and worked solution →Slice the atmosphere's contentsRead the answer and worked solution →Troposphere or stratosphereRead the answer and worked solution →Sort the atmosphere's partsRead the answer and worked solution →Type the numberRead the answer and worked solution →Atmosphere bingoRead the answer and worked solution →Koeppen's widely used classification of climate follows which approach?Read the answer and worked solution →Koeppen found a close relationship between climate and the distribution of:Read the answer and worked solution →Koeppen's classification scheme was developed in which year?Read the answer and worked solution →

Worked practice questions

Which gas is transparent to incoming solar radiation but opaque to outgoing terrestrial radiation?

  1. Argon molecules
  2. Carbon dioxide
  3. Nitrogen gas
  4. Oxygen molecules
Show answer and solution

Correct answer: B. Carbon dioxide

1. It absorbs part of the earth's radiation. 2. Carbon dioxide behaves this way. 3. It drives the green house effect. _Source: syllabus Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._

Open this question →

The rise in carbon dioxide in recent decades is mainly due to:

  1. Ocean evaporation
  2. Plant respiration
  3. Burning fossil fuels
  4. Volcanic eruptions
Show answer and solution

Correct answer: C. Burning fossil fuels

1. Other gas volumes are constant. 2. Fossil fuel burning has raised carbon dioxide. 3. Air temperature has risen too. _Source: syllabus Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._

Open this question →

Ozone is found between which heights above the earth?

  1. 0 and 10 km
  2. 50 and 80 km
  3. 80 and 400 km
  4. 10 and 50 km
Show answer and solution

Correct answer: D. 10 and 50 km

1. It sits mostly in the stratosphere. 2. Ozone lies between 10 and 50 km. 3. It filters ultra-violet rays. _Source: syllabus Fundamentals of Physical Geography, Chapter 8, Composition and Structure of Atmosphere._

Open this question →

How to practise

  1. Choose a Environment & Ecology question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Geography topics

Indian GeographyPhysical GeographyIndian EconomyWorld GeographyPopulationIndian DemographicsScience & TechnologyAgriculture