Which one of the following lakes of Rajasthan was in the news for the death of a large number of birds in the year 2019?

Himmataram Bhambhu, who is recipient of Padma Award, is working in the field of_____. 

Find the value of

 sin⁴30⁰ + cos⁴30⁰ – sin25⁰cos65⁰-sin65⁰cos25⁰

What was the suitable language for source material in Ancient Times? 

The following table shows the numbers of chairs made of plastic and of steel in 5 different colours that were sold from a furniture showroom during a sale.

The total number of chairs of colour C3 sold are what percentage of all the chairs of these 5 colours sold, both plastic and steel ones put together? [Give your answer correct to 2 decimal places.]

Instructions :In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Comprehension:

I would uncover the story that lay (1) ______ between the lines of the men’s exploits. Better still, I (2) ______ one of them tell it herself, with all her joys and doubts, her struggles and her triumphs, her heartbreaks, her achievements, the unique female way (3) ______ which she sees her world and her place in it. And who could be (4) ______ for this than Panchaali? It is her life, her voice, her questions, and her vision that I invite you (5) ______ 'The Palace of Illusions'.

Select the most appropriate option to fill in the blank No. 3.

Read the passage carefully and give the answer of following questions.

The public sector banks are witnessing in India a period of transition and are at crossroads, where they without giving up social responsibility, should also remain healthy. They need to undertake risky experiments, yet perform it innovatively in a way it does not fail. They should make forays into new areas which are rarely tread by them and lose no emerging opportunities. It should be understood that absence of any bad advance is no sign of efficient banking system. It only indicates immense conservatism. However this is no guarantee for profit. There should be a balance between liquidity and risk. Past sins should be forgotten. Novel and pragmatic techniques should be adopted without which banks would be in danger.

In addition to being socially responsible, what does the author want the banks to be?

Richter scale is used to measure the magnitude of ___________.