Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 9
Questions
2
Municipal Solid Wastes (MSWs) have the heating value typically in the range
Answer: 9,300 to 12,800 kJ/kg
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4
The following statistical test is used to ascertain whether there is significant difference between the variances of two sets of observations :
Answer: F-test
6
United Nations Conference on Environment, also termed as Earth Summit, was held in 1992 in which city ?
Answer: Rio de Janeiro
7
In which part of India, the tropical Western Ghats are situated ?
Answer: Kerala
8
Variety of different species, genetic variability among individuals within each species and variety of ecosystems constitute the so called
Answer: Biological diversity
10
In a multiple regression model, the f-ratio is used to test the
Answer: Overall goodness of fit of the model
11
If the mean of a sample is 20, the standard error of mean is 1 and the t-statistic for 95% level of confidence is
2.5, the population mean will be in the range
Answer: 17.5 to 22.5
12
The third moment about the mean of a distribution of a set of observations is a measure of
Answer: Skewness
13
Consider an air shed over a city in the form of a rectangular box. The wind velocity is 5 m/sec normal to left face of the box. The length of the box along the direction of wind is 10 km and mixing height is 1 km. Assuming rapid
mixing of the pollutants which are conservative in nature, the concentration of the pollutants in the city would reach 63% of its final value in
Answer: 2,000 sec
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