Geography

Planets of the solar system explained with their characteristics

len Alfred Ajibola - Tue, 31st December, 2019 @ 12:12 PM

Topics in Geography

Environmental geography explained with its branches Igneous rock explained with its types and textures Characteristics of Igneous Rock What are Sedimentary Rocks? Formation and Types of Sedimentary Rock Characteristics of Sedimentary Rock Types and Characteristics of Metamorphic Rock Physical geography explained with its branches Geography Scheme of Work, SS1, First Term Geography Scheme of Work, SS1, Second Term Geography Scheme of Work, SS1, Third Term Classification and types of planets with their characteristics Planets of the solar system explained with their characteristics Functions of the Atmosphere Layers of the Atmosphere Solar System in Geography Composition of the Atmosphere Human geography explained with its branches What are metamorphic rocks? Formation of metamorphic rock?


Academic Questions in Geography

Please click here to see all Questions and Answers

Which of the following is not a branch of environmental geography?

  • A. Physical Geography

  • B. Hazards

  • C. Political Ecology

  • D. Environmental Perception

  • E. Landscape Studies

  • F. Energy and Resource Geography

Sandstone is an example of _____ ​​​​​​.

  • A. Sandy soil

  • B. Loamy soil

  • C. Clay soil

  • D. Igneous rock

  • E. Sedimentary rock 

  • F. Metamorphic rock

Which of the following isn't an example of metamorphic rock?

  • A. Schist

  • B. Quartzite

  • C. Gabbro

  • D. Marble

  • E. Slate

  • F. Serpentinite

Which of the following statements is false concerning metamorphic rock?

  • A. The are less dense than igneous and sedimentary rocks

  • B. They can be foliated or non foliated

  • C. They are crystalline in nature

  • D. They have a more coarse texture than their protolith

  • E. They may be formed from an older metamorphic rock

  • F. They are characterized with precious metals and stones

Earth's distance from the sun is approximately _____ million kilometers.

  • A. 147

  • B. 85

  • C. 40

  • D. 220

  • E. 309

  • F. 400

Which of the following is not a branch of physical geography?

  • A. Economic Geography

  • B. Religious Geography

  • C. Social Geography

  • D. Resource Geography

  • E. Settlement Geography

  • F. Industrial Geography

Water resource geography is a branch under physiography.

  • A. True

  • B. False

With regards to ozone, which of the following is incorrect?

  • A. Ozone is a triatomic molecule

  • B. Ozone layer aids in preventing excess ultraviolet radiation from reaching the earth

  • C. Ozone is a natural greenhouses gas

  • D. Ozone comprises of oxygen molecules only

  • E. Ozone layer brings about a global warming on earth

  • F. Ozone is present in the stratosphere



Planets of the solar system:

The planets comprising the solar system are 13 in number. Out other these, 9 are considered as categorized.

The image below shows the planets of the solar system:

Planets of the Solar System - Len Academy


The following rules are required for a body to become classified (or regarded) as a planet:


Characteristics of the planets

The categorized planets are listed below according to their relative distance from the sun. Their characteristics are also summarized below:


1. Mercury

  • It has a diameter of 4,879.4 kilometer.

  • It has an average distance of about 57 million kilometer from the sun.

  • The earth is about 9 times bigger than mercury.

  • It has no natural satellite.

Please read on the classification (types) of planets and their characteristics here.


2. Venus

  • It has a diameter of 12,104 kilometer.

  • It has an average distance of about 108 million kilometer from the sun.

  • It is the hottest planet in the solar system.

  • The earth is about 25% bigger than venus.

  • It has no natural satellite.


3. Earth

  • It has a diameter of 12,742 kilometer.

  • It has an average distance of about 150 million kilometer from the sun.

  • It has one natural satellite named 'moon'

  • The earth is about 81 times bigger than the moon.

  • This is the only planet where life is found.

Please read on the characteristics of life (living organisms) here.


4. Mars

  • It has a diameter of 6,779 kilometer.

  • It has an average distance of about 228 million kilometer from the sun.

  • The earth is about 9 times bigger than mars.

  • It has two small natural satellites named phobos and deimos.


5. Jupiter

  • This is the largest planet.

  • It has a diameter of 139,820 kilometer.

  • It has an average distance of about 779 million kilometer from the sun.

  • Jupiter is about 318 times bigger than earth.

  • It has at least 67 known natural satellites.

You can read on the atmosphere and its composition here.


6. Saturn

  • It has a diameter of 116,460 kilometer.

  • It has an average distance of about 1.46 billion kilometer from the sun.

  • Saturn is about 95 times bigger than earth.

  • It has 62 natural satellites. The largest of its satellite is named titan.


7. Uranus

  • It has a diameter of 50,724 kilometer.

  • It has an average distance of about 2.88 billion kilometer from the sun.

  • It is generally considered as the coldest planet in the solar system.

  • Uranus is about 15 times bigger than earth.

  • It has 27 natural satellites.


8. Neptune

  • It has a diameter of 49,244 kilometer.

  • It has an average distance of about 4.5 billion kilometer from the sun.

  • Neptune is about 17 times bigger than earth.

  • It has 14 natural satellites.

You can read on the types of geography here.


9. Pluto

  • It has an average distance of about 5.91 billion kilometer from the sun.

  • Earth is about 400 times bigger than pluto.

  • It has 5 natural satellites.

 

The 4 uncategorized planets are:

  • Ceres

  • Eris

  • Haumea

  • Makemake

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Amazing facts in Geography

Lake Baikal - Len Academy

Lake Baikal is the deepest freshwater lake in the world. It is located in Siberia, and has a depth of 5,315 feet (1,620 meters)

River Nile is the world's longest river, reaching a length of 6,853km. It runs through the borders of 11 African countries. These are Egypt, Sudan, South Sudan, Ethiopia, Uganda, Democratic Republic of the Congo, Kenya, Tanzania, Rwanda, Burundi and Eritrea

The deepest place on Earth is the Mariana Trench in the Pacific Ocean. It has a dept of 11,034 meters (or 36,201 feet)

Japan has recorded the most earthquakes and is thereby considered as the world's most earthquake-prone country

The planets Jupiter, Saturn, Uranus and Neptune have no solid surfaces, but are rather made up of gases. For this reason, humans can never stand on them

Burg Khalifa - Len Academy

Burg Khalifa is the tallest building in the world (as at 2023). It is situated in Dubai and stands at over 2,700 feet

Pepto Bismol-colored Lake Hillier is a pink colored lake present in Australia

Pepto Bismol-colored Lake Hillier - Len Academy

Mount Everest is the highest point on earth with a height of 8,849 meters (29,032 feet). It is located between Nepal and Tibet, an autonomous region of China.

Mountain Everest is a symbol of relationship between Nepal and Tibet, and was named in the nineteenth century after George Everest, a former Surveyor General of India

A day on planet venus is longer than a year. This is so because it takes venus 243 'earth days' to spin round its axis (rotation), but takes 225 'earth days' to go around the sun (revolution).

In geography, understand that a day is reached when the planet makes a full spin or rotation round it's axis. However, a year is reached when a planet revolves fully around the sun

The Four Corners is a location in the United States of Ameria where one can stand in four states simultaneously (at the same time). The states are: Utah, Colorado, Arizona and New Mexico.

On the Four Corners, a person stands on the southwestern corner of Colorado, southeastern corner of Utah, northeastern corner of Arizona, and northwestern corner of New Mexico at once.


Notable points in Geography

Planets can be categorized based on their composition. These include:

1. Terrestrial or Rocky Planets: They are mercury, venus, earth and mars. They are called terrestrial or rocky planets for the following reasons:

  • They have a rocky and compact surface.

  • They have no rings around them.

  • They have a few natural satellites.

  • They rotate slowly around their axis.

 

2. Gas or Jovian Planets: They include jupiter, saturn, uranus and neptune. They have the following features:

  • They are called jovian planets because they are bigger in size when compared to earth.

  • They are composed mainly of hydrogen and helium gas, hence the name 'gas planets' or 'gas giants'.

  • They rotate rapidly.

  • They have many satellites.

  • They have rings around them.

Please read more on the classification of planets here.

Planets of the Solar System - Len Academy

The following rules are required for a body to become classified (or regarded) as a planet:

  • It must orbit the sun.

  • It does not orbit another planet. This means that it must not be a satellite.

  • It must have sufficient mass which accounts for its self-gravity.

  • It must assume a nearly round shape.

Please read on the planets of the solar system here.

Earth's atmosphere is extremely important for the survival of all its inhabitants. As a student, it is important you comprehend how the above functions of the atmosphere support life. The explanations below give credence to this fact.

When one moves further away from earth, the atmosphere becomes thinner until it disappears into the outer space. There is no atmosphere in space. For this reason, astronauts will always wear a spacesuit while carrying along their oxygen gas masks and canisters when in space.

People living on very high altitudes will likely experience a reduced amount of oxygen in the atmosphere. Such people survive because their bodily organs become adapted to survive in such conditions.

On mountain everest for instance, mountain climbers will need to carry oxygen canisters because lesser amount of oxygen is present on this mountain.

Please read more on the functions of the atmosphere here

The interface forming the boundary between two atmospheric layers are always named with a 'pause' at its end; for instance;

  • Tropopause: This is the interface or boundary between the troposphere and stratosphere.

  • Stratopause: Interface between the stratosphere and mesosphere.

  • Mesopause: Interface between the mesosphere and ionosphere.

  • Ionopause: Interface between the ionosphere and thermosphere.

The atmosphere surrounding the earth is layered. Each layer has its own characteristics although the boundaries between them are not clearly defined.

The image below shows the different layers of the atmosphere:

Layers of the Atmosphere - Len Academy

Please read more on the layers of the atmosphere here.