The Brahmaputra, Irrawaddy and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a 'U' turn in its course to flow into India. This 'U' turn is due to 

 

There is a concern over the increase in harmful algal blooms in the sea-waters of India. What could be the causative factors for this phenomenon? 
1. Discharge of nutrients from the estuaries. 
2. Run-off from the land during the monsoon. 
3. Upwelling in the seas. 
Select the correct answer using the codes given below 

A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existence is threatened due to the destruction of its habitat. Which one of the following could be that animal? 

The lower Gangetic plain is characterized by a humid climate with high temperatures throughout the year. Which one among the following pairs of crops is most suitable for this region? 

India has experienced persistent and high food inflation in the recent past. What could be the reasons? 
1. Due to a gradual switch over to the cultivation of commercial crops, the area under the cultivation of food grains has steadily decreased in the last 5 years by about 30%. 
2. As a consequence of increasing incomes, the consumption patterns of the people have undergone a significant change. 
3. The food supply chain has structural constraints.
Which of the statements given above are correct? 

Two important rivers-one with its source in Jharkhand and known by a different name in Odisha and another, with its source in Odishamerge at a place only a short distance from the coast of Bay of Bengal before flowing into the sea. This is an important site of wildlife and biodiversity and a protected area. 

Which one of the following could be this? 

Consider the following
1. Black-necked crane 
2. Cheetah 
3. Flying squirrel 
4. Snow leopard 
Which of the above are naturally found in India? 

Consider the following areas 
1. Bandipur
2. Bhitarkanika
3. Manas
4. Sunderbans
Which of the above are tiger reserves? 

Consider the following statements
1. The duration of the monsoon decreases from Southern India to Northern India. 
2. The amount of annual rainfall in the Northern plains of India decreases from East to West. 
Which of the statement(s) given above is/are correct?