www.UPSCPORTAL.com : "(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Ratio & Proportion" plus 4 more

(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Ratio & Proportion
(IGP) IAS Pre: GS - Science & Technology : Biology - The Excretory System (MCQ -12)
(IGP) IAS Pre: GS - Science & Technology : Biology - The Excretory System
(IGP) IAS Pre: GS - Geography - World Geography Physical: World Climatic Types (MCQ -3)
(IGP) IAS Pre: GS - Geography - World Geography Physical: World Climatic Types

(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Ratio & Proportion

Posted: 12 Jan 2012 12:32 AM PST

Basic Numeracy
Ratio & Proportion

Ratio

The ratio of two quantities a and b is the fraction a/b and is expressed as a : b. Here a is the first term or antecedent and b is the second term or consequent. Since the ratio expresses the number of times one quantity contains the other, it is an abstract (without units) quantity.

A ratio remains unaltered if its numerator and denominator are multiplied or divided by the same number. eg, 4 : 3 is the same as (4 × 10) : (3 × 10) ie, 40 : 30.

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(IGP) IAS Pre: GS - Science & Technology : Biology - The Excretory System (MCQ -12)

Posted: 11 Jan 2012 11:30 PM PST

Biology
The Excretory System (MCQ -12)

1. Consider the following statements.
(i) Anemia is very toxic exerted by marine animals.
(ii) Amphibians secrete urea from the liver.
(iii) Burd & insects secrete uric acid.

Which of the above are incorrect?
a) i & ii
b) ii only
c) iii only
d) None of the above

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(IGP) IAS Pre: GS - Science & Technology : Biology - The Excretory System

Posted: 11 Jan 2012 11:21 PM PST

Biology
The Excretory System

INTRODUCTION

Cells produce water and carbon dioxide as by-products of metabolic breakdown of sugars, fats, and proteins. Chemical groups such as nitrogen, sulfur, and phosphorous must be stripped, from the large molecules to which they were formerly attached, as part of preparing themfor energy conversion. The continuous production of metabolic wastes establishes a steep concentration gradient across the plasma membrane, causing wastes to diffuse out of cells and into the extracellular fluid.

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(IGP) IAS Pre: GS - Geography - World Geography Physical: World Climatic Types (MCQ -3)

Posted: 11 Jan 2012 11:03 PM PST

World Geography Physical
World Climatic Types (MCQ -3)

1. Which of the following are correct?
i) In the Hot wet equatorial climate there is no winter
ii) The diurnal and the annual range of temperature is small

a) i
b) i i
c) both i and ii
d) none