Prelims 2019: Rau’s IAS MCQ’s – Environment, Ecology, Biodiversity, Climate Change and Geography

Rau's IAS MCQ's - Environment, Ecology, Biodiversity, Climate Change and Geography Download    Join Telegram :  

Prelims Program: Indus River System

Details : Why it is important? In view of the Pulwama attack, India is weighing its options for retaliation against Pakistan, who sponsored the attack.Out of many options, one big move that India can take is to abrogate the Indus Waters Treaty (which deals with river Indus and its five tributaries).  Join Telegram: Indus … Continue reading Prelims Program: Indus River System

Why a dam in Karnataka bothers Tamil Nadu

Headline : Why a dam in Karnataka bothers Tamil Nadu Details : Why in news? Recently, Tamil Nadu Chief Minister E K Palaniswami wrote to the Prime Minister urging him to stop the process of a feasibility study for the Mekedatu dam project in Karnataka.   About Mekedatu dam project Being set up by the Karnataka government, … Continue reading Why a dam in Karnataka bothers Tamil Nadu

Tropical Evergreen Forests Conditions for growth:

Tropical Evergreen Forests Conditions for growth: Tropical Evergreen and Semi Evergreen Forests are found mainly in the areas where the annual rainfall is more than 250 cm, with a short dry season. The average annual temperature should be above 22 °C. Characteristics: Lofty, very dense, multi-layered forest with mesophytic evergreen, 45m or more in height, … Continue reading Tropical Evergreen Forests Conditions for growth:

Hydroelectric Projects in India

Consider the following statements about Kishenganga River 1.      It is a tributary of river Satluj 2.      It is called Neelum in Pakistan Select the correct statements a       Only 1 b       Only 2 c       Both 1 and 2 d       Neither 1 nor 2 Explanation: Solution (b) The Jhelum has its source in … Continue reading Hydroelectric Projects in India

Geography – Seismic Gap, Liquefaction

Seismic Gap:- It's the earthquake prone area where occurs a gap in the occurrence record of major earthquakes. This means, that statistically, major earthquake is due ie, much more time had elapsed since the last major earthquake than the average time gap between two major earthquake as per the historical occurances. Telegram : Liquefaction:- … Continue reading Geography – Seismic Gap, Liquefaction

Geography Concept:- Trade Winds, Outback

Trade Winds:- Trade winds are most regular of all the planetary winds and in general they blow with great force and in constant direction. Since trade winds blow from the subtropical latitudes to the warmer equatorial latitudes, they have great capacity of holding moisture. In their passage across oceans, they gather more moisture and bring … Continue reading Geography Concept:- Trade Winds, Outback

Brief about El Nino, La Nino, Southern Oscillation, Walker Cell

El Nino :- El- Nino is Spanish word for male child ( Christ Child) El Nino refers to two things:- 1. ceasing of upwelling off west coast of South America (Eastern Pacific Ocean) 2. appearance of warmer waters than average on the surface of ocean off the west coast of South America. Statistically, El-nino has … Continue reading Brief about El Nino, La Nino, Southern Oscillation, Walker Cell

Grography – ITCZ, Doldrums, Horse Latitude

Doldrums:- At sea, ITCZ area is called doldrums because sailors in olden days used to get becalmed here. It's the region of weak winds (small pressure gradients), High Humidity and High Temperatures occuring heat near equator. Telegram: Horse Latitude:- In olden days, Zones at about 30 N/S Degree were known as Horse latitude. When … Continue reading Grography – ITCZ, Doldrums, Horse Latitude

Quiz-Q19. Consider the following pairs: Which of the pairs given above is/are correctly matched?

Q19. Consider the following pairs: Which of the pairs given above is/are correctly matched? Ocean Current Coast Affected 1. Humboldt - Brazil 2. Aghulas -Africa 3. Irminger -USA A. 1 and 2 only B. 2 and 3 only C. 2 only D. 1 and 3 only Answer: C Exp: Ocean currents are large masses of … Continue reading Quiz-Q19. Consider the following pairs: Which of the pairs given above is/are correctly matched?

Quiz- Q17. Consider the following statements:

Q17. Consider the following statements: 1. Highest peak in the Western Ghats is Anamudi. 2. The Aravalli range is an example of block mountain. 3. Guru Shikhar is the highest peak in the Abu hills. Which of the statements given above are correct? A. 1 and 2 only B. 2 and 3 only C. 1 … Continue reading Quiz- Q17. Consider the following statements:

National Population Policy 2002

National Population Policy 2002  long term objective of achieving a stable population by 2045  To address the unmet needs for contraception, health care infrastructure, and health personnel  To provide integrated service delivery for basic reproductive and child health care.  Maternal Mortality Rate: below 100 per lakh birth.  Infant Mortality Rate: 30 per … Continue reading National Population Policy 2002

Everything about Steel Sector

About Steel sector • In 2016-17, India's total 'Finished Steel Production' for sale was around 100 MT with an apparent consumption of about 85 MT. Thus production of finished steel was sufficient to meet its present demand in the country and also for exports. • The domestic steel sector contributes around 2% of the country’s GDP … Continue reading Everything about Steel Sector

Solar storms:

Solar storms: It could refer to the following: Coronal mass ejection: Corona, the outer solar atmosphere, is structured by strong magnetic fields. Where these fields are closed, often above sunspot groups, the confined solar atmosphere can suddenly and violently release bubbles of gas and magnetic fields called coronal mass ejections. Solar flares: These are intense burst of … Continue reading Solar storms:

Buxa Tiger Reserve:

Buxa Tiger Reserve: It is located in Alipurduar district of West Bengal. It was notified as a tiger reserve in 1983. The tiger reserve has an area of about 758 sq km. Out of this, 390 sq km lies in the core area and 367 sq km in the buffer zone. Some parts of the reserve … Continue reading Buxa Tiger Reserve:

Tropic of Cancer 

Tropic of Cancer passes through below countries N America - Mexico Bahamas Africa - Western Sahara Mauritania Mali Algeria Niger Libya Egypt  Middle East - Saudi Arabia UAE Oman Asia - India Bangladesh Myanmar China Taiwan

Prime Meridian 

Prime Meridian  passes through below countries Europe  UK France Spain Africa Algeria Mali Burkina Faso Tongo Ghana


Equator: passes through below Countries S America Ecuador Colombia Brazil  Africa - Sao Tome & Principe Gabon Republic of the Congo Democratic Republic of the Congo Uganda Kenya Somalia Maldives Asia - Indonesia Kiribati

Biomes of the World

Equatorial Zone Equatorial rainforest - around equator Amazon rainforest, Congo basin, and east indies Uniform weather through out the year Rains in the afternoons Double rainfall peaks coinciding with the equinoxes Canopy structure - layered trees Epiphytes Unfertile soil Abundance of species Difficult to penetrate the jungle Cloud Forests - relates to Selvas Hardwood trees … Continue reading Biomes of the World

Minerals of India

Minerals Metallic  Ferrous - Iron, manganese Non Ferrous - Cu, Bauxite Non Metallic  Fuel - Coal, Oil, petroleum Others - mica, limestone, granite Iron ore  India has largest reserve in Asia Haematite and magnetite Northern Orissa - Rourkela steel plant (German collaboration) Jharkand - Jamshedpur , Bokaro steel plant (Russian collaboration) Chattisgarh - Bhilai steel … Continue reading Minerals of India

Tropic of Capricorn 

Tropic of Capricorn passes through below countries S America - Argentina Brazil Chile Paraguay Africa - Namibia Botswana S Africa Mozambique Madagascar Oceania  Australia


Natural vegetation refers to a plant community that has been left undisturbed over a long time, so as to allow its individual species to adjust themselves to climate and soil conditions as fully as possible. Himalayan heights are marked with temperate vegetation; Western Ghats and the Andaman Nicobar Islands have tropical rain forests Deltaic regions … Continue reading NATURAL VEGETATION In India