Earth — Part 1 MCQs with Explanations

At about 11 a.m. EDT (1500 GMT) on the Fourth of July, the Earth will reach that point in its orbit where it is farthest from the sun called aphelion, this location in Earth's orbit puts the planet about 94.5 million miles (152 million kilometers) from the sun.

Seasonal contrast are maximum in mid latitude.

A geostationary orbit is a special kind of orbit around the Earth. Imagine a satellite staying in the same spot in the sky as the Earth rotates! For this to happen, the satellite needs to be at a very specific height. This height is about 36,000 kilometers (km) above the Earth's equator. If it were any lower, the satellite would orbit faster than the Earth's rotation. If it were any higher, it would orbit slower. The other options are much too low to maintain a geostationary orbit. So, 36,000 km is the magic number!

The time difference between Delhi and New York is approximately 9 hours and 30 minutes, with New York being ahead of Delhi. Therefore, when it is Monday at 7:30 PM in Delhi, it is still Monday but at 10:00 AM in New York. So, the correct answer is: Option D: The same day at 10:00 AM Due to the time zone difference, the radio broadcast from Delhi on Monday at 7:30 PM is heard in New York on the same day at 10:00 AM.

The position of the sun is annually twice overhead at Singapore because of the parallelism of inclined axis of the earth.

This is due to the fact that most land surfaces are darker than water which of course means more absorption of solar radiation and heat. Since land absorbs more solar radiation the land surface retains more heat as do the vegetation for energy. Thus, land surfaces warm more quickly than water.

1. Prime Meridian passes through Greenwich and is at 0° Longitude. This statement is correct. 2. The International Date Line is not a straight line along 180° Longitude. It is a jagged line that deviates from 180° Longitude in several places to avoid dividing certain countries or island groups into two different calendar days. Therefore, this statement is incorrect. 3. While crossing the International Date Line from east to west, one gains a day. This statement is incorrect. 4. The Tropic of Cancer lies at approximately 23.5° North latitude. This statement is correct. Therefore, the correct statements are 1 and 4, making Option D the correct answer.

Since the ecliptic is tilted 23.5° with respect to the celestial equator, the Sun's maximum angular distance from the celestial equator is 23.5°. This happens at the solstices.

Time at London (0° longitude) is 10:30 am. Baghdad is at 45°E. Difference in longitudes = 45° For every 1° longitude, there is a difference of 4 minutes For 45° longitude there will be a difference of = (45*4)minutes = 180 minutes or 3 hours As Baghdad is towards the east of London, it'll be ahead of time at London time at Baghdad = (10:30am + 3 hours) = 1:30pm

India is a large country spanning over 30° of longitude. It is unusual in having a single time zone all over the country, 5½ hours fast. If the direction of rotation of earth is reversed then Indian Standard Time will be – 5½ hr. When it is noon the time is 12:00; that will be 6:30 A.M. in place of 17:30 P.M. or 5:30 P.M.

180° longitude is the International Date line.

The International Date Line (IDL) is an imaginary line of longitude on the Earth's surface located at about 180° east (or west) of the Greenwich Meridian.

Sun which is also a star is the nearest star to Earth. Besides Sun, Proxima Centauri is the nearest star to the solar system. The Sun is the closest star to Earth, about 93 million miles away.

For every 1° longitude, there is a difference of 4 minutes For 2 hrs, there will be a difference of 30°. So the correct answer is 30° east as Cairo is ahead of Greenwich time.

The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second - or roughly 1,000 miles per hour.

When it is 8 P.M. in Tokyo, 8.00 A.M. is the time at Panama Canal which is located at 180° W of it. If we travel from east to west the time decreases.

Lines of longitude, called meridians, run perpendicular to lines of latitude.

On June 21, the sun can be seen straight overhead along the Tropic of Cancer, while the North Pole reaches its maximum annual tilt toward the sun. As the planet rotates on its axis, areas within the Arctic Circle see the sun circle through the sky for 24 hours.

A relief map is a type of map that shows the physical features and elevation of an area's surface. It uses shading, contour lines, and color to represent the topography of the land, including mountains, valleys, and other geographical features. Relief maps provide a visual representation of the three-dimensional characteristics of the Earth's surface on a two-dimensional map, allowing viewers to understand the terrain and elevation variations of a specific area. Therefore, the correct option is Option A: Relief Map .

Cartography or map-making is the study and practice of crafting representations of the Earth upon a flat surface (see History of cartography), and one who makes maps is called a cartographer.

Latitude runs from 0° at the equator to 90°N or 90°S at the poles. Lines of latitude run in an east-west direction. Longitude runs from 0° at the prime meridian to 180° east or west, halfway around the globe. All are equal.

Equinox occurs when the sun is vertically above the equator. At this time, the sun equally illuminates the Southern and Northern hemisphere. At this time the world experiences equal day and night. Equinox occur twice a year. The months are March and September.

As you move from the equator towards the poles, the latitude increases (up to 90°). The further you go from the equator in any direction, the difference between the duration of the day and night in different times of the year will be bigger.

As you move from the equator towards the poles, the latitude increases (up to 90°). The further you go from the equator in any direction, the difference between the duration of the day and night in different times of the year will be bigger.

It passes through the Bering Strait between the Diomede Islands at a distance of 1.5 kilometres (0.93 mi) from each island at 168°58′37″ W.

They emphasize on a particular theme or topic such as average rain, climatic condition, pressure in particular months etc. These are diffirent from general maps.

It is six months long day in the northern polar region and six months long night in the southern polar region because Earth is inclined towards its orbital plane.

Our planet's rotation produces a force on all bodies moving relative to the Earth. Due to Earth's approximately spherical shape, this force is greatest at the poles and least at the Equator. The force, called the "Coriolis effect," causes the direction of winds and ocean currents to be deflected.

At 12 noon of December 21, you observe that you cast no shadow as you stand in bright sunlight. So you must be, somewhere near The Tropic of Capricorn. The Tropic of Capricorn is the circle marking the latitude 23.5° south where the sun is directly overhead at noon on December 21, the beginning of winter in the northern hemisphere.

The revelations of a satellite photograph of the earth are it is slightly pear shaped ellipsoid of rotation, the polar axis of the earth is slightly shorter than the equatorial axis and the equatorial circumference is about 40,000 km.

Tides in the sea have stored in them a combination of all the above three forms of energy.

The closest point to the Sun in a planet's orbit is called perihelion. When Earth is at perihelion, it is about 147 million km (91 million miles) from the Sun.

The Earth is 4,54 billion years old. This age has been determined with the radioactive dating technique. The precise decay rate of radioactive elements is used as a clock: the number of daughter products in one rock indicates its age.

The seasons in the Southern Hemisphere are actually less extreme than in the Northern Hemisphere. The reason is because the Southern hemisphere has more seas, while the Northern has more land mass and land mass retains more heat.

During a solar eclipse, the Moon actually casts two shadows toward Earth. One shadow is called the umbra which becomes smaller as it reaches the Earth. This is the dark center of the Moon's shadow.

Sandford Fleming, a Canadian engineer invented the Universal Standard Time. Sir Sandford Fleming advocated the adoption of a standard time or mean time, as well as hourly variations from that according to established time zones.

There are 24 time zones in the world. This signifies that the Earth is divided into 24 'slices', and each time zone moves on one hour from the previous time zone and each 'slice', is 150 wide.

Four of the most significant imaginary lines running across the surface of Earth are the equator, the Tropic of Cancer, the Tropic of Capricorn, and the Prime Meridian. While the equator is the longest line of latitude on Earth (the line where Earth is widest in an east-west direction), the tropics are based on the sun's position in relation to Earth at two points of the year. All three lines of latitude are significant in their relationship between Earth and the sun. Running in the opposite direction, north-south, the Prime Meridian is one of the most important lines of longitude on Earth.

On January 3, Earth reaches perihelion, its closest point to the Sun in its yearly orbit around our star.

Mohorovicic Discontinuity lies between Crust & Mantle, the word 'discontinuity' used here represents the (region) where seismic waves change velocity.