Ocean Acidification and its effect on marine ecosystem

What is ocean acidification?   Since the beginning of the industrial revolution, the release of carbon dioxide (CO2) from humankind’s industrial and agricultural activities has increased the amount of CO2 in the atmosphere. The oceans currently absorb about a third of human-created CO2 emissions, roughly 22 million tons a day.When carbon dioxide dissolves in this ocean, carbonic acid is formed. CO2 reacts with water molecules (H2O) and forms the weak acid H2CO3 (carbonic acid). Most of this acid dissociates into hydrogen ions (H+) and bicarbonate… Continue Reading »


Prelims MCQs Quiz 39 : Government Schemes

1. The Kudumbashree program by the Kerala government works in the area of 1. reducing maternal mortality 2. providing micro credit 3. enhancing entrepreneurship 4. providing housing Select the correct answer using the codes given below. a) 1 and 2 only b) 1 ,3 and 4 only c) 2 and 3 only d) 1 ,2, and 4 only 2. The Price stabilization fund will support the procurement of 1. onion 2. groundnut 3. potato 4. rice Select the correct answer using the codes given below. a)… Continue Reading »


Bioindicators – mechanism, uses, advantages and examples

What are bioindicators? A bioindicator is a living organism that gives us an idea of the health of an ecosystem. Some organisms are very sensitive to pollution in their environment, so if pollutants are present, the organism may change its morphology, physiology or behaviour, or it could even die.   What can be a bioindicator? Bioindicators can be plants, animals or microorganisms.   How various bioindicators tell about the environmental health? 1. If toxins are present, certain plants may not be able to grow in… Continue Reading »


Prelims MCQs Quiz 38 : Economy

1. The term ‘micro-finance’ frequently appears in newspapers. Micro-finance includes 1. small loans 2. small deposits 3. money transfer 4. payment services Select the correct answer using the codes given below. a) 1, 2 and 3 only b) 1 ,3 and 4 only c) 2 ,3 and 4 only d) 1 ,2, 3 and 4  2. Consider the following statements about International Finance Corporation: 1. It is known as the private arm of the world bank. 2. It lends money to private sector companies of all… Continue Reading »


Prelims MCQs Quiz 37 : Current Affairs

1. The Price stabilization fund will support the procurement of 1. onion 2. groundnut 3. potato 4. rice Select the correct answer using the codes given below. a) 1 and 2 only b) 1 and 3 only c) 2 and 3 only d) 1 and 4 only Context : http://www.thehindu.com/news/national/price-stabilisation-fund-centres-nod-for-rs-500-crore-corpus/article7044189.ece 2. Plant protection code is a set of guidelines for regulating chemical inputs in a) fruits b) vegetables c) cereals d) tea Context : http://www.thehindu.com/business/Industry/plant-protection-code-rolls-out-to-make-tea-a-safer-beverage/article6745706.ece 3. In context of priority sector lending, which of the following is/are… Continue Reading »


Prelims MCQs Quiz 36 : Polity

In our previous post, we read about application based questions in polity for UPSC Prelims. We tried to illustrate it with examples from Mock Test 2 of our GS Prelims Mock Test Series 2015. In this post, we are providing answers and explanations to those example questions from Mock Test 2.   1. The Supreme Court quashed section 66A of the IT act. It did so on which of the following basis? 1. the punishment prescribed was extreme. 2. expressions in the section were vague.… Continue Reading »


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