3406: Excessive release of the pollutant carbon monoxide (CO) into the air may produce a condition in which oxygen supply in the human body decreases. What causes this condition ?
(a) When inhaled into the human body, CO is converted into CO2
(b) The inhaled CO has much higher affinity for haemoglobin as compared to oxygen
(c) The inhaled CO destroys the chemical structure of haemoglobin
(d) The inhaled CO adversely affects the respiratory centre in the brain
3407: Persons below the poverty line in India are classified as such based on whether
(a) they are entitled to a minimum prescribed food basket
(b) they get work for a prescribed minimum number of days in a year
(c) they belong to agricultural labourer household and the scheduled caste/tribe social group
(d) their daily wages fall below the prescribed minimum wages
3408: Canola refers to special type of oil seed mustard varieties bred for human consumption. The main characteristic of these varieties is that the
(a) seeds have very high oil content
(b) oil is rich in unsaturated fatty acids
(c) oil has long shelf-life
(d) oil has very low Erucic acid content
3409: Mitochondrial DNA in an individual comes from
(a) Male parent
(b) Female parent
(c) Both parents
(d) Neither of the parents
3410: Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss?
1. Hard and waxy leaves
2. Tiny leaves
3. Thorns instead of leaves
Select the correct answer using the code given below :
(a) 2 and 3 only
(b) 2 only
(c) 3 only
(d) 1, 2 and 3