Explore topic-wise InterviewSolutions in Current Affairs.

Measuring Temperature:

1. The temperature of a unit volume of air at a given time is measured in scales like Celsius, Fahrenheit, and Kelvin. Meteorologist measures the temperature by the Thermometer, Stevenson screen and minimum and maximum Thermometer.

2. The energy received by the earth through insolation is lost by outgoing radiation.

3. Atmosphere is mainly heated by outgoing radiation from 2 to 4pm .So the maximum temperature is recorded between 2 and 4 pm regularly and minimum temperature is recorded around 4 am before sunrise.

Mean Temperature: 

1. The average of maximum and minimum temperatures within 24 hours is called mean daily temperature [(87°F + 73°F)/2=80°F].

2. Diurnal range of temperature is the difference between the maximum and minimum temperatures of a day. Annual range of temperature is the difference between the highest and lowest mean monthly temperatures of a year.

The globe allows us to see the entire area of the earth at the same time.

A map can be easily carried from one place to another.

A map can be useful to show a village/city.

On a very small globe the entire earth can be represented.

The globe is suitable for understanding the concept of day and night on the earth.

The globe is spherical.

The map allows us to see only one side of the earth at a time.

A map can be used for studying a particular region in detail.

The world map and map of India are flat.

Two-dimensional objects have length and width and its product is area. Three-dimensional objects have length, width and height and its product is volume.

• EARTHA is the largest operational globe in the world.
• It is housed at Yarmouth in the State of Maine in the United State of America.
• The rotation and revolution speed of this globe is maintained as per that of the earth.

• A field visit helps us to understand the geographical and social conditions of a place.
• It provides an opportunity to directly interact with the local people and understand their problems.

The globe can be called a model of the earth.

i. Map, land

ii. Globe, duster

iii. Post office, mall

iv. Yarmouth in the State of Maine in the United States of America.

With decreasing air pressure,the availability of oxygen to breath also decreases. At very high altitudes, atmospheric pressure and available oxygen get so low that people can become sick and even die. Mountain climbers use bottled oxygen when they ascend very high peaks

i. two, three

ii. Globe

iii. geography

iv. EARTHA

Aircraft take time to get used to the altitude as the quick move from high pressure to low pressure can cause decompression sickness. Aircraft create artificial pressure in the cabin which makes the passengers remain comfortable while flying.

1. Peter’s father

2. Peter

3. Any child in Holland

4. Peter

5. Peter

1. Peter

2. Peter

3. The man going to work

4. Peter

5. The people of Holland

Various steps to draw a map:

• A wire globe is prepared.
• A source of light is placed inside the globe.
• Thereafter projection of the wire graticule is obtained on a paper
• This projection is used to draw maps.

C) 2550 N in a direction opposite to that of the vehicle.

The student with the help of the teacher can write something about the climate in those areas.

The atmospheric conditions of these places will change from time to time.

Correct option is A) weather report

Nearness to the sea leads to a humid climate whereas height above mean sea level will lead to a cool climate.

1. The earth is spherical in shape. So, the sun’s rays fall unevenly on the earth’s surface. The Polar regions receive slanting sun’s rays. Hence there is little or no sunlight, thus there is an extreme cold winters.

2. Temperature varies with time due to changes in the level of radiation which reach the earth surface. This is due to motions of the earth (The rotation and revolution) and inclination of the earth’s axis.

3. As you go up in an airplane, the atmospheric pressure becomes lower than the pressure of the air inside your ears. Your ears pop because they are trying to equalize or match the pressure.

Peter thought of his mother, father, his brother and sister who would be fast asleep and didn’t want them to be drowned in sleep. They were the reasons for him to hold on.

Correct option is B) weather forecast

Peter told the man that he was keeping the water back and asked him to bring people soon for mending the hole.

Clothes will take longer time to dry in Mussoorie because of the medium heat and cold air.

Correct option is D) All the above

While returning back, he admired the pretty field and stopped to pick the pretty blue flowers that grew beside the road. He also stopped and listened to the rabbits’soft tread as they rustled through the grass. Often, he smiled thinking about his chat with his blind friend.

We wear cotton clothes in summer.

Occupations practiced in cold region are lumbering and agriculture.

The villagers brought shovels and mended the hole after hearing the alarm

The humidity in the atmosphere is called moisture. The proportion of moisture in the atmosphere depends on the temperature. Air with higher temperature holds a greater amount of moisture.

The father always said angry waters because the sea water lashed on the dikes always.

Correct option is C) dry

Peter stayed with the poor blind man a little while to tell him about his walk along the dike and about the sun and the flowers and the ships far out at sea.

In Bhopal the clothes on the clothesline will dry quickly. Due to the hot sun the water in the wet clothes get converted into vapour quickly.

We wear woollen clothes in winter.

(c) 1013.25 mb

• The lowermost layers of air are subjected to the pressure of the upper layers.
• So, the density of the lower layers of air increases.
• There is greater air pressure near the surface of the earth.
• Therefore, air pressure decreases with increasing height.

Vapour in the atmosphere condenses into water droplets or snow particles. Their showering on the earth is called precipitation.

1. In certain areas during rainy season also the tanks and canals remain dry. 

2. The dried canals and tanks are used for other purposes. 

3. In such areas when it rains heavily there is no way to drain out the water. 

4. As a result many areas were flooded and submerged.

If it is raining, we wear a raincoat or carry an umbrella.

• The earth’s surface gets heat from the Sun.
• Thus, the surface gets heated.
• The air close to the earth surface starts becoming hot.
• Later, different layers of air at higher elevation receive heat.
• Therefore, as we move upward from sea-level, the temperature of air decreases.