Question

In terms of the earth-sun relation explain the significance of the: TRPOIC OF CANCER, THE TROPIC OF CAPRICORN, THE ARCTIC CIRCLE, THE ANTARCTIC CIRCLE

Answer 1

North Pole North Pole Sunrays Arctic Circle Article Sun rays Tropic of Cancer Tropical Cancer Sunrays Sunrays qur SUN Trepiced Capricorn Trepic of Capecon Sunrays Sun rays S'S Antarcticale Antarcticale South Pole South Pole Figure: Earth's Tilt axis rotation and sun energy. Figure represents the winter and summer solstice in northern and southern hemisphere Significance of Arctic Circle • An imaginary line/circle at 66.5° N latitude to the farthest north of equator in northern hemisphere is termed as Arctic circle This region faces very low temperature throughout the year due to less sunlight and its geographical location • During summer solstice, most of area above Arctic circle experiences 24 hour sunlight at the same time the area of Antarctic circle experience winter solstice i.e. 24 hours night and vice versa to the Antarctic region During summer more sunlight is captured by arctic region as compared to equatorial region and opposite happens during winter months. This phenomena is due to the earth is tilted at 23.5 on its axis. Significance Antarctic Circle . An imaginary line at 66.5 S latitude to the farthest south of equator in southern hemisphere is termed as Antarctic circle During equinox phenomena the sun rays are more intense at the equator and both northern and southern regions will receive equal amount of sunlight The seasonal changes and the earth's tilted axis mark the region with low temperature throughout the year. • Antarctic region faces exactly opposite solstice phenomena to that of Arctic region and vice versa. Tropic of Cancer . Tropic of cancer is an imaginary latitudinal line which is located at 23.5 N of equator.

Zenith is observed on 21st June in summer solstice in the noon time when sun is directly over the tropic of cancer i.e the sun is directly overhead. This phenomena occurs once in a year due to earth's rotational axis tilted 23.5° The seasons in tropics are indicated by trade winds Tropic of Capricorn • Tropic of capricorn is an imaginary latitudinal line which is located at 23.5° S of equator Zenith is observed on 21st December in summer solstice in the noon time when sun is directly over the tropic of cancer i.e the sun is directly overhead. This phenomena occurs once in a year due to earth's rotational axis tilted 23.5 • The seasons in tropics are indicated by trade winds