Morning Star solutions for टोटल जियोग्राफी [इंग्रजी] इयत्ता ९ आयसीएसई chapter 1 - Earth as a Planet [Latest edition]

At the Bedford level canal area a famous experiment was carried out. How many poles were used and at what distance apart?

The view of the earth's surface as seen from a height is ______.

Assertion (A): With increase in altitude the circular horizon of the earth's surface also widens.

Reason (R): The earth's surface is flat.

At what angle can the Pole Star be seen at the Poles and at the Equator?

Assertion (A): The pole star lies in line with the axis of the earth with its angle decreasing towards the Equator.

Reason (R): The earth is spherical in shape.

Magellan's ship Victoria after completing a round-the-world voyage in 1522 returned to which country?

Earth's diameter at the Equator is ______ and at the poles is ______.

Ancient cultures took earth for a disk, but very soon the observation of stars and planets revealed that earth resembles a sphere. After the late 1700s measurements showed that earth is slightly flattened at the poles. What is the shape of the earth?

Given below are pairs of statements. Select the statements which prove the spherical shape of the earth.

1. If there were no buildings in the way, we would be able to see another city that is hundreds of miles away.
2. The boat would stay in view no matter how far out to sea it went.
3. A ship slowly starts to disappear from view as it gets farther away.
4. If we were to place two identical sticks in the ground in two different places, the length of their shadows differs.
5. During a lunar eclipse, the sun projects Earth's shadow onto the moon and the shadow is round.

The atmosphere of Venus has maximum concentration of which gas?

Earth happens to orbit the sun within the so-called “Goldilocks zone,” where temperatures are just right to maintain liquid water on our planet's surface. Water covers roughly 71 % of Earth's surface, with most of that water located in our planet's ______.

Assertion (A): Water on earth drastically tones down day and night temperature variation.

Reason (R): Water can absorb enormous amount of heat without causing much change in its temperature.

Name the gas that absorbs the harmful ultraviolet rays of the sun.

Assertion (A): The earth is the only planet known to support life.

Reason (R): The earth is a terrestrial planet like Mercury and Venus.

Assertion (A): Earth is a watery planet that supports life.

Reason (R): Distribution of water is responsible for moderating the surface condition of the earth.

Earth has a very hospitable temperature and mix of chemicals that have made life abundant here. Most notably, earth is unique in that most of our planet is covered in liquid water, since the temperature allows liquid water to exist for extended periods of time. Besides liquid water and temperature identify the other features of our planet that make it great for sustaining life.

What is the thickness of the Biosphere?

What term refers to a self-regulating and self-sustaining unit of the biosphere?

Name the cycle through which solar energy moves from non-living to living organisms and back.

Name the basic raw material for life.

Name the genius Indian mathematician astronomer from the ancient world who was the first proponent of the round shape of the earth.

You are standing at a beach looking towards the horizon. You hear the horn of a ship. Which part of the ship will you see first?

Where was the Bedford Level Experiment carried out?

How can you prove that the earth is a sphere by looking at the horizon?

Briefly describe the shape of the earth.

What is the specific name given to the shape of the earth?

What is the earth’s mean temperature? 

State the one advantage of earth's mean temperature.

Why is the earth called a watery planet?

What is the ‘biosphere’?

Name the conditions necessary for life on earth.

Give any two features of the earth that make it a ‘Unique Planet’.

What would happen if the average temperature of the earth increased by half a degree?

Trace the cyclical movement of carbon in the three realms of the earth.

How does the sighting of a ship from the seashore prove that the earth is round in shape?

Use a 1m long table to replicate the Bedford Level Experiment. Briefly mention how did you carry out the experiment to prove the shape of the earth.

Give a geographical reason for the sunrise and sunset occur at different times at different places.

Give a geographical reason for the earth is not a perfect sphere.

Give a geographical reason for venus is hotter than mercury.

Draw a well labelled diagram to show that the horizon of the earth is circular in shape.

Describe the role of the following in making the earth a habitable planet.

Atmosphere

Describe the role of the following in making the earth a habitable planet.

Water

Describe the role of the following in making the earth a habitable planet.

Temperature

Describe the role of the following in making the earth a habitable planet.

Distance from the Sun

How does the following prove the circular shape of the earth:

Lunar Eclipse

How does the following prove the circular shape of the earth:

Pole Star

What is an ecosystem?

Give examples of any two ecosystems.

Give a geographical reason for earth is a habitable planet.

Give a geographical reason for the following:

From space Earth looks blue.

Give a geographical reason for water bodies reduce the day-night temperature variations.

Draw a well labelled diagram to show the cyclic circulation of water between the three realms of the earth.

You have gone from Delhi to Arunachal Pradesh on a study tour with your school during the winter vacation. As you woke up in the morning at 6 o'clock, you noticed the sun has risen whereas at Delhi sun rise is around 7 .30 a.m. Similarly around 4.30 it was sunset while sunset is around 6 p.m. in Delhi. What do you think could be the reason for the sun rising and setting earlier than Delhi? Which feature of the earth can you relate to from this?

The earth depends upon the sun for its energy. Imagine a day, when the sun would not rise. Write down the consequences for the earth and its inhabitants.

Prepare a project on Natural Creation and Destruction. State the conditions essential for the maintenance of life on our planet. Give a description of how new species have evolved and of how many species of plants and animals have become extinct. Look around your environment. Describe natural forces of creation and destruction that are active all the time.