The question asks to identify the coldest among the three major heat zones of the Earth. Understanding the Earth's heat zones and their characteristics based on their latitudinal position is key to answering this question.
Correct Option: C) Frigid Zone — The Frigid Zones are located near the poles and receive the least direct sunlight, resulting in extremely cold temperatures, making them the coldest of the three major heat zones.
To determine the percentage of Earth's surface covered by the Torrid Zone, we need to understand its latitudinal extent and then calculate the surface area it encompasses relative to the total surface area of the Earth. The Earth's surface area can be approximated using a sphere, and the area of a spherical zone can be calculated using a specific formula.
C) About 40% — The calculation shows that the Torrid Zone covers approximately 39.87%
To determine the percentage of Earth's surface covered by each Frigid Zone, we need to understand the geographical boundaries of these zones and then calculate the surface area they encompass relative to the total surface area of the Earth. The Frigid Zones are defined by the polar circles.
Correct Option: C)
The question asks about the number of times the Sun is directly overhead in the Torrid Zone annually. This relates to the Earth's axial tilt and its revolution around the Sun, which causes the apparent movement of the Sun between the Tropics of Cancer and Capricorn.
A) Twice (at any latitude within the zone) - This is correct. Due to the Earth's axial tilt and its revolution around the Sun, the subsolar point (where the Sun is directly overhead) moves between the Tropic of Cancer and the Tropic of Capricorn. For any given latitude between the Equator and the Tropics, the Sun passes overhead twice a year: once as it moves towards the respective tropic and once as it moves back towards the Equator. At the Equator itself, it's twice (equinoxes). At the Tropics themselves, it's once (solstices). The question asks "at least how many times
This question tests knowledge of Earth's axial tilt and its effect on the sun's apparent movement and the solstices and equinoxes. The key is to understand when the sun's rays are directly overhead at the Tropic of Cancer.
C) June Solstice (around 21 June) — The June Solstice (also known as the Summer Solstice in the Northern Hemisphere) is the day when the Northern Hemisphere is maximally tilted towards the Sun. On this day, the Sun's rays are directly overhead at the Tropic of Cancer (\(23.5^\circ\) N latitude), resulting in the longest day of the year in the Northern Hemisphere.
The question asks to identify the climatic zone characterized by "midnight Sun" and "polar night" phenomena. These phenomena are directly related to the Earth's axial tilt and its revolution around the Sun, leading to extreme variations in daylight hours at high latitudes.
A) Frigid (Polar) Zone is the correct answer because it encompasses the regions around the Earth's poles (from 66.5° N/S to 90° N/S latitude) where the phenomena of midnight Sun and polar night occur due to the Earth's axial tilt.