A political party in India acquires the status of registered party if it secures what fraction of votes in a state?

Which among the following is the largest terrestrial pool of carbon?

Mercury poisoning in India is a major environment and public health concern. Mercury is most commonly used in:

1. Paints
2. Compact fluorescent lamps
3. Antiseptic agents
4. Electrical switches

 Select the correct option from codes given below:

Identify the soil with the help of given information:

1. It is mainly formed over basalt rocks and in the low rainfall areas
2. The soil is rich in clay and due to this it has a high moisture retention capacity and is good for dry farming
3. It contains high proportion of calcium and magnesium carbonates
4. It is poor in organic matter, nitrogen and phosphorus

Select the correct answer from options given below:

Which of the following statements is incorrect about “Operation Greens” announced in Budget 2018?