716: Consider the following statements :
1. Maize can be used for the production of starch.
2. Oil extracted from maize can be a feedstock for biodiesel.
3. Alcoholic beverages can be produced by using maize.
Which of the statements given above is / are correct ?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
717: Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning?
1. Smelting units
2. Pens and pencils
3. Paints
4. Hair oils and cosmetics
Select the correct answer using the codes given below :
(a) 1, 2 and 3 only
(b) 1 and 3 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4
718: Which one of the following events, was characterised by Montague as Preventive Murder ?
(a) Killing of INA activists
(b) Massacre of Jallianwalla Bagh
(c) Shooting of the Mahatma
(d) Shooting of Curzon-Wythe
719: Biological Oxygen Demand (BOD) is a standard criterion for
(a) Measuring oxygen levels in blood
(b) Computing oxygen levels in forest ecosystems
(c) Pollution assay in aquatic ecosystems
(d) Assessing oxygen levels in high altitude regions
720: Consider the following events in Indian Freedom Movement :
1. Singh Sabha Movement
2. Quit India Movement
3. Dandi March
4. Gurdwara Reform Movement
The correct chronological sequence of these events is
(a) 1, 4, 3, 2
(b) 4, 1, 2, 3
(c) 2, 3, 4, 1
(d) 3, 2, 1, 4