Chapter Exam

Chapter-6 Weather and Climate — Online MCQ Test

Q: Which layer of the atmosphere is called the weather sphere?

Answer: A. Troposphere — The troposphere is the lowest layer of the atmosphere and all weather phenomena occur in it.

Q: Which is NOT a weather element?

Answer: D. Population density — Population density is a human geographical factor, not an element of weather.

SOCIAL · Samacheer Kalvi 8th · Tamil Nadu State Board

Practice Chapter-6 Weather and Climate with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 8th SOCIAL. This chapter covers: Atmosphere Troposphere Temperature Rainfall Barometer Differentiates weather and climate while explaining atmospheric layers and weather instruments. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-6 Weather and Climate — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 8th SOCIAL — Chapter-6 Weather and Climate, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which layer of the atmosphere is called the weather sphere?

A. Troposphere ✓
B. Stratosphere
C. Mesosphere
D. Thermosphere

Answer: A. Troposphere
The troposphere is the lowest layer of the atmosphere and all weather phenomena occur in it.

What is weather?

A. The average condition of the atmosphere for many years
B. The condition of the atmosphere at a particular place and time ✓
C. The amount of rainfall in a year only
D. The movement of ocean currents

Answer: B. The condition of the atmosphere at a particular place and time
Weather refers to the atmospheric condition of a place at a specific time, such as temperature, humidity, and rainfall.

Climate is best described as:

A. Daily change in atmospheric conditions
B. Short-term change in wind direction
C. Average weather condition of a place over a long period ✓
D. Sudden change in rainfall within an hour

Answer: C. Average weather condition of a place over a long period
Climate is the long-term average pattern of weather observed over many years in a region.

Which is NOT a weather element?

A. Temperature
B. Rainfall
C. Atmospheric pressure
D. Population density ✓

Answer: D. Population density
Population density is a human geographical factor, not an element of weather.

Which statement best explains why weather is more changeable than climate?

A. Weather is the average of many years, so it changes slowly
B. Climate changes every hour, but weather stays fixed
C. Weather changes from day to day or even hour to hour, while climate is a long-term average ✓
D. Weather occurs only in winter, while climate occurs in summer

Answer: C. Weather changes from day to day or even hour to hour, while climate is a long-term average
Weather is the short-term state of the atmosphere, so it changes frequently, whereas climate is the long-term pattern.

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