1896: With reference to bio-toilets used by the Indian Railways, consider the following statements:
1.The decomposition of human waste in the bio-toilets is initiated by a fungal inoculum.
2. Ammonia and water vapour are the only end products in this decomposition which are released into the atmosphere.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
1897: Besides proteins and carbohydrates, other elements of nutritional value found in milk include
(a) calcium, potassium and iron
(b) calcium and potassium
(c) potassium and iron
(d) calcium and iron
1898: Consider the following statements:
On the eve of launch of Quit India Movement, Mahatma Gandhi
1. asked the government servants to resign.
2. asked the soliders to leave their posts.
3. asked the Princes of the Princely States to accept the sovereignty of their own people.
Which of the statements given above is/are correct?
(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1, 2 and 3
1899: In the grasslands, trees do not replace the grasses as a part of an ecological succession because of
(a) insects and fungi
(b) limited sunlight and paucity of nutrients
(c) water limits and fire
(d) None of the above
1900: Where was the World Summit on Sustainable Development (Rio + 10) held ?
(a) Johannesburg
(b) Shanghai
(c) Nova Scotia
(d) Davos