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23 lessons,
3h 1m
Practice MCQ's- Environment & Ecology 1
45 plays

Highly recommended for MPPSC/UPSC Exam

Sudarshan Gurjar is teaching live on Unacademy Plus

Sudarshan Gurjar
Top & Verified Plus Educator. Winner of Perfect Presence Award!! Mentored more than 10,000 students.

Unacademy user
@ 3.00 height of object aap o.2 bol rahe ho ku jabki apne likha 1.2 m just clarify it
Simran Kapoor
3 months ago
It will be 1.2
Vikash KUMAR
3 months ago
mam ok but complete vdo basic se daliye aur har point ko smjhaiye upcoming lecture m waise sare vdo achhe h nice
Vikash KUMAR
3 months ago
mam aap irrigation ki ese level ki vdo basic se dijiye
Vikash KUMAR
3 months ago
mam ese ki preparation krta hu apke vdo se basic to high level clear ho jate h nice vdo
  1. About me: SUDARSHAN GURAR Verified Educator & Plus Educator at Unacademy Mentored more than 10,000 students. Teaching Geography since 2013 ( UPSC category). A Geography Learner. COURSES AVAILABLE ON PLATFORM Geography through Maps. Current Affairs & In-depth Editorial Analysis. Special Current Affairs on Madhya Pradesh & many more PLUS CoURSES Current Affairs & In-depth Editorial Analysis. Y unacademy

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  4. "Methanol has been promoted as an alternative transportation fuel from time to time over the past forty years". Which of the following statements regarding Methanol is not correct? (a) It can be produced from natural gas. (b) It is a biodegradable fuel. (c) Similar to hydrocarbon fuels, it is not soluble in water. (d) It can be blended with ethanol and gasoline.

  5. .Option (c) is not correct Methanol, like ethanol but unlike hydrocarbon fuels, is water soluble . As a consequence, it is transported through diffusion and convection through the environment at much faster rate than hydrocarbons. In addition to fast migration, methanol bio- degrades much faster than hydrocarbons. Fast transport and degradation result in short lifetimes. . Hydrocarbons, on the other hand, comprise many stable compounds, which include some, such as aromatics, that are highly toxic to bio-organisms and degrade slowly hghly ms and degnade slowiyt

  6. Which of the following is/are the emissions from coal combustion at thermal power plants? 1. Mercury 2. Particulate matter 3. Oxides of Sulphur Select the correct answer using the code given below. (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

  7. Answer D Coal fired thermal power plants are one of the main contributors for atmospheric pollution and greenhouse gases. Emissions that come from these plants could be categorized into three different categories: Gaseous emissions Carbon Dioxide, Carbon Monoxide, Sulphur Dioxide and Nitrogen Dioxide which lead to global warming and acid rain. .Particulate matter emissions - this fine dust that is emanated from the stacks of power plants is a health hazard Trace elements like Mercury, Cadmium and Lead which are also health hazards.

  8. Off-grid Renewable Energy can be a game changer as it can provide energy to isolated communities and areas. Which of the following can be used as a part of such system? 1. Biomass gasifiers 2. Micro hydro projects 3. Solar Photo Voltaic Roof-top Systems Select the correct answer using the code below (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3