Chapter 8 Earth's Weather and Climate, science, class 4, Questions 1,2,3,4,5,6,7,8,9,10 PTBB, Pakistan 2023 SLO's Topics covered in questions

 Chapter 8 

Earth's Weather and Climate, 

science, class 4, 

Questions 1,2,3,4,5,6,7,8,9,10 

PTBB, Pakistan 2023  SLO's Topics covered in questions 

Chapter 8 Earth's Weather and Climate, science, class 4, Questions 

 

Question:1

How do weather change?

Answer:

Annual rotation of the Earth around the Sun and the tilt of the Earth on its axis are responsible for changes in the weather.

Question:2

Why is the climate of Earth different at different locations?

Answer:

Earth's varying climate is influenced by factors like latitude, elevation, ocean currents, and proximity to water bodies. These variables interact, shaping temperature, precipitation, and seasons, creating diverse climates from polar cold to tropical heat.

Question:3

Why do hilly areas become spots of recreation during summer time?

Answer:

Hilly areas offer cooler temperatures due to altitude, making them attractive recreational spots in summer. People seek relief from heat, enjoy outdoor activities, and experience scenic beauty.

Question:4

Differentiate between weather and climate?

Answer:

Weather: 

The daily condition of the environment or atmosphere of a location is called weather. The duration of weather may be one or more days. Weather is described in terms of temperature, humidity in air, precipitation ( rain or snow), clouds and winds of that particular location.

Climate:

Is your region hot or cold? The general 

Chapter 8 Earth's Weather and Climate, science, class 4, Questions 

conditions of an area are called climate. It is the average weather conditions of an area. In fact climate describes the general and long- lasting weather conditions of an area.

Question:5

Describe Relationship between Geographical Location and Weather or Climate?

Answer:

Geographical location of a region is an important factor for determining its climate. Many other factors affect the climate of any geographical location. These include temperature, air, pressure, speed and direction of wind, humidity, rain and snow, etc. 

Question:6

On the basis of  climate, How can we divide the Earth zones?

The climate or weather changes of any region depend upon falling of sun rays either vertically or slanting.

On the basis of climate, we can divide the Earth into three zone:

1. Tropical Zone

2. Temperature Zone

3. Polar Zone

Question:7

What is the relation between climate and the height from sea level?

Answer:

Climate off High Regions

With the rise of height from the sea level, the climate becomes cooler and the duration of winter season increases.

Question:8

Why does the climate change with distance from equator?

Answer:

Climate changes with distance from the equator due to varying angles of sunlight. Near the equator, direct sun rays create a warmer tropical climate. Towards poles, oblique rays cause colder conditions. This angle difference affects temperature, seasons, and weather patterns.

Question:9

Why is the climate of Polar Zone very cold?

Answer:

It consists of the areas around the north and south poles of the Earth. Here, the sun rays are more slanted. Therefore, the climate of this Zone is the coldest. As we move away from equator, the climate becomes less hot.

Question:10

In which zone is our country located on the basis of the climate? Explain.

Answer:

Pakistan is located in the subtropical arid zone. It experiences diverse climate zones due to its geographical features and location. The northern regions have a temperate climate due to higher elevations, while the southern parts, including most of the country, have a subtropical arid climate.

Question:10

Constructed Response Questions:

i.  Identify the different zones on the figure of the Earth, on the basis of climate.

Answer:

1. Tropical Zone

2. Temperature Zone

3. Polar Zone

ii. What is the climate of these zones? Describe the reasons.

Answer:

1. Tropical Zone

Tropical zone consists of the regions located around the equator. Here, the sun rays fall vertically. That is why the climate of this zone is hot.

2. Temperature Zone

Temperate zone is located between Tropical and Polar zones. Here, the Sun rays fall diagonally. The climate of this zone is mild due to slanting Sun rays.

3. Polar Zone

It consists of the areas around the north and south poles of the Earth. Here, the sun rays are more slanted. Therefore, the climate of this Zone is the coldest. As we move away from equator, the climate becomes less hot. As we move away from equator, the climate becomes less hot. Eventually, the temperature is minimum at the poles, hence these areas the coldest regions of the Earth.

Question:11

How many weathers are there on the Moon? Does the Moon also have storms, rains and snowfall like our Earth? What is your opinion about the climate of the Moon?

Answer:

The Moon's climate greatly differs from Earth's. It lacks a substantial atmosphere, leading to extreme temperature variations: scorching during lunar day and freezing during night. There's no weather in the traditional sense; no storms, rain, or snow due to the absence of significant atmosphere and water. Instead, it experiences space weather effects like solar wind and micrometeoroid impacts. It's a harsh, desolate environment compared to Earth's diverse climates.

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