General Science & Ability (Solved Past Paper)

Q. 2. (a)  Define ceramic and nano-ceramic materials. Why the nano-ceramics show better properties than their ceramic counterparts? Write the applications of ceramic materials.  (b) What is ‘Black Hole’? How black holes are formed and discovered?  (c) Write two applications of each of the following electromagnetic radiations: (i) Ultraviolet (ii) Infra-red (iii) Microwaves (iv) Radio…...

Q. 2. (a) What do you know about Volcanoes? Discuss the causes and effects of volcanic eruptions.  (b) Differentiate between renewable and non-renewable sources of energy. Briefly explain wind energy, solar energy and biofuels.  (c) What is a Tornado? How is it formed and what are the effects of tornadoes? Explain briefly.  (d) Discuss various…...

Q. 2. (a) Differentiate between a star and a planet. What is the magnitude of a star and how the color of stars is correlated with their temperatures?  (b) “Semiconductors are the Brains of Modern Electronics”. Explain in detail what this quotation means. (c) Briefly describe the most popular and accepted theory about the origin…...

Q. 2. (a) On 7th April 2012 an Avalanche hit a Pakistan military base in Gayari sector trapping 140 soldiers and civilians under deep snow. What is Avalanche; describe its four types with focus on most dangerous type?  (b) What do you understand by Global Wind and Pressure patterns? Also explain wind and pressure features…...

Q. 2. (a) Deficiency of vitamins causes different human diseases some of which are given in the table below. Choose the correct type of vitamin from the box and write in front of each disease: (b) People suffering from cardiovascular diseases have a high level of cholesterol in their blood. This often leads to a…...

Q. No. 2. (A). Describe different methods to estimate the age of the Universe. (B). Explain the formation of Lunar Eclipse. (C). Explain the terms Dark Energy and Dark Matter. (D). Define the term Black Hole. What’s expected inside it?      (A) Different Methods to Estimate the Age of the Universe: Estimating the age of the…...

Q. No. 2. (A) What are the factors responsible for environmental pollution? (B) Briefly explain the main reasons of water-logging in Pakistan. (C) What do you mean by Ozone depletion and how we can prevent its depletion? (D) What is an Acid Rain and how it is produced. Briefly describe the dangers associated with it?   …...

Q. No. 2. (a) What were the main objectives of Clean Development Mechanism? Also explain the reasons for the criticism on Koyoto Protocol by the developed countries. (b) Differentiate between Sanitary and Industrial Landfills, also describe the land selection criteria for Landfills.   (a) Main Objectives of Clean Development Mechanism (CDM): Criticism on Kyoto Protocol by…...