4011: The following table shows the per cent change in the amount of sales (in rupees) at different retail stores in a given neighbourhood market in the period 1993 to 1995 :
If the sales at Anshu store amounted to Rs. 8 lakhs in 1993, then the amount of sales (in lakhs of rupees) at that store in 1995 was
(a) 7.92
(b) 8.00
(c) 8.80
(d) 9.68
4012: In which of the following activities are Indian Remote Sensing (IRS) satellites used?
1. Assessment of crop productivity
2. Locating groundwater resources
3. Mineral exploration
4. Telecommunications
5. Traffic studies
Select the correct answer using the code given below.
(a) 1, 2 and 3 only
(b) 4 and 5 only
(c) 1 and 2 only
(d) 1, 2, 3, 4 and 5
4013: Gerontology is the study of:
(a) Process of ageing
(b) Growth of cells
(c) Birds
(d) Vegetables
4014: Which one of the following is not a digestive enzyme in the human systems?
(a) Trypsin
(b) Gastrin
(c) Yellow and violet
(d) Indigo and yellow
4015: Barium in a suitable form is administered to patients before an X-ray examination of the stomach, because
(a) barium allows X-rays to pass through the stomach on account of its transparency to X-rays
(b) barium compound, like magnesium sulphate helps in cleaning the stomach before X-ray examination
(c) barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture
(d) barium salts are white in colour and this helps the stomach to appear clearly in contrast with other regions in the picture