91.

Growing agricultural crops between rows of planted trees is known as

• Social forestry

• Jhum

• Taungya system

• Taungya system

A drainage pattern where a river is joined by its tributaries approximately at right angles is

• Dendritic

• Trellis

• Rectangular

• Rectangular

The core of the earth is also known as

• Lithosphere

• Mesosphere

• Barysphere

• Barysphere

The polar regions are sparsely populated because of

• lack of minerals

• unsuitable climatic conditions

• infertile land

• infertile land

Algal bloom results from

• Global Warming

• Salination

• Eutrophication

• Eutrophication

Black soil is also known by which of the following name?

• Khadar Soil

• Bangar Soil

• Alluvial Soil

• Alluvial Soil

The driest location on Earth is in which country?

• Kenya

• Chile

• Congo

• Congo

Magnetic Meridian is a

• Line parallel to the equator of the earth

• Latitude

• Line joining the geographic north and geographic south of Earth

• Line joining the geographic north and geographic south of Earth

Great Barrier Reef, the world's largest Coral reef is located in

• Caribbean Islands

• Australia

• Philippines

• Philippines

Which one of the following cities of Iraq is located on Tigris river?

• Baghdad

• Mousul

• Kirkuk

• Kirkuk