Chambal ravine formation significantly increases soil loss from agricultural lands and severely impacts agricultural productivity. A review of ephemeral gully erosion and spreading rates of the ravenous tracks of Lower Chambal Valley using geospatial tools shows that both the ravenous and the marginal lands have increased during the last 15 years.

Correct Option: D

Chambal ravine formation significantly increases soil loss from agricultural lands and severely impacts agricultural productivity. A review of ephemeral gully erosion and spreading rates of the ravenous tracks of Lower Chambal Valley using geospatial tools shows that both the ravenous and the marginal lands have increased during the last 15 years.

Around 200 million years ago (also known as the Middle Permian Period), an extensive sea stretched along the latitudinal area presently occupied by the Himalayas. This sea was named the Tethys. Around this period, the super continent Pangaea began to gradually split into different land masses and move apart in different directions.

Correct Option: A

Around 200 million years ago (also known as the Middle Permian Period), an extensive sea stretched along the latitudinal area presently occupied by the Himalayas. This sea was named the Tethys. Around this period, the super continent Pangaea began to gradually split into different land masses and move apart in different directions.

Extensive deserts occur in the western tropical regions of continents because of the effect of both the offshore easterly trade winds and cold ocean currents. Most deserts arise due to atmospheric wind conditions. Other deserts result from the effects of ocean currents on landmasses, where cool air masses carry fog and mist, but little rain, along coastal regions. World desert map depicts the location of all the deserts of the world. ... They are centered along the Tropics of Cancer and Capricorn. The heart of the tropical desert climate is found near the tropics of Cancer and Capricorn, usually toward the western side of the continents.

Correct Option: C

Extensive deserts occur in the western tropical regions of continents because of the effect of both the offshore easterly trade winds and cold ocean currents. Most deserts arise due to atmospheric wind conditions. Other deserts result from the effects of ocean currents on landmasses, where cool air masses carry fog and mist, but little rain, along coastal regions. World desert map depicts the location of all the deserts of the world. ... They are centered along the Tropics of Cancer and Capricorn. The heart of the tropical desert climate is found near the tropics of Cancer and Capricorn, usually toward the western side of the continents.

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is contained within and managed by Grand Canyon National Park, the Hualapai Tribal Nation, and the Havasupai Tribe. President Theodore Roosevelt was a major proponent of preservation of the Grand Canyon area. A number of processes combined to create the views that we see in today’s Grand Canyon. The most powerful force to have an impact on the Grand Canyon is erosion, primarily by water (and ice) and second by wind. Other forces that contributed to the Canyon’s formation are the course of the Colorado River itself, volcanism, continental drift and slight variations in the earth’s orbit which in turn causes variations in seasons and climate.

Correct Option: A

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is contained within and managed by Grand Canyon National Park, the Hualapai Tribal Nation, and the Havasupai Tribe. President Theodore Roosevelt was a major proponent of preservation of the Grand Canyon area. A number of processes combined to create the views that we see in today’s Grand Canyon. The most powerful force to have an impact on the Grand Canyon is erosion, primarily by water (and ice) and second by wind. Other forces that contributed to the Canyon’s formation are the course of the Colorado River itself, volcanism, continental drift and slight variations in the earth’s orbit which in turn causes variations in seasons and climate.

During the June solstice the Earth’s North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of 66.5 degrees N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.

Correct Option: B

During the June solstice the Earth’s North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of 66.5 degrees N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.