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Question 1:
(i) Show a diagram to show how temperature varies with altitude. Show clearly the location of the tropopause, stratopause and mesopause.
(ii) Briefly explain the troposphere and its characteristics.
Question 2:
i) Describe the terms convection and radiation. Give examples as they apply in the atmosphere.
ii) State the Stefan - Boltzmann law.
iii) Write the mathematical expression of the law.
iv) Determine the amount of energy emitted by the earth in Watts m-2 at 20 degrees Celsius, given the Stefan -Boltzmann constant, σ = 5.67 x 10-8 Watts m-2 K4.
Explain the Stagnant or Ischemic Hypoxia It is a hypoxia resulting from slow peripheral circulation (such as follows congestive cardiac failure). In this, the blood flow to the
A famous downslope wind that occurs in North America on the East side of the Rocky Mountains is called a: chinook
Adulteration of food: We live in a society where some times foods and even medicines are sold in an adulterated form by mixing it with other materials, which are neither food
how do plates make there own food
An x-ray diffractometer recorder chart for an element that has either the BCC or the FCC crystal structure shows diffraction peaks at the following 2θ angles: 40 0 , 58 0 , 73 0 ,
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Explain Maintenance of pH - Functions of Bile Maintenance of pH: Bile neutralises the hydrochloric acid and helps to maintain a suitable pH. This prevents the injurious effects
Let us summarise the important points that we have understood about the radiation and chemical hazards in this unit. The radiations, causing severe hazards like cancers, mutations,
Explain physical barrier for External Defence Mechanism - Skin It provides nice protective covering to the body. The outer layer- horny layer - contains dead keratinized cells
Venus-the Clouded Planet Venus, our nearest planetary neighbour, only 40 million km away, has its surface hidden from view by a dense yellowish-white cloud, which extends to 80
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