World Climate And Weather — Part 2 MCQs with Explanations

Air currents can be horizontal as well as vertical currents. The vertlcal air currents can be mechanically and thermally induced. Mechanically induced are the ones which occur at convergence & divergence points of air on earth, also locally when air rises vertically due to topography, while thermally induced vertical air currents occur when air expands & rises due to heat & the above lying cooler air comes down.

The hot desert of the world are generally found near the horse latitude. The hot and dry weather conditions led to the formation of many well-known deserts. The Sahara desert in Africa is located in the horse latitudes north of the equator. The Kalahari desert and the Australian desert are both located in the horse latitudes south of the equator.

Agriculture Involving both crops and livestock is known as Mixed farming. Mixed farming is an agricultural system in which a farmer conducts different agricultural practice together, such as cash crops and livestock. The aim is to increase income through different sources and to complement land and labour demands across the year.

Parent rock determines colour, texture, chemical properties, mineral content and permeability of soil. The most important abiotic factor in formation of soil is regarded as parent rock as the color, texture and permeability of soil are shaped according to parent rock.

Grasslands are called Pampas in South America. The Pampas of South America are a grassland biome. They are flat, fertile plains that covers an area of 300,000 sq. miles or 777,000 square kilometers, from the Atlantic Ocean to the Andes Mountains. It is found primarily in Argentina and extends into Uruguay.

The Llanos and Campos of South America are examples of Savanna regions. Llanos is a vast tropical grassland plain situated to the east of the Andes in Colombia and Venezuela, in northwestern South America.

All aerosol is a cloud of solid or liquid particle in a gas. Fog, clouds and mist are examples of aerosol as these fromed in atmosphere around soild or liquid particiles.

Pastoral herding occupies the largest area of the world. Pastoral farming (also known in some regions as ranching, livestock farming or grazing) is a form of agriculture aimed at producing livestock, rather than growing crops. Examples include dairy farming, raising beef cattle, and raising sheep for wool.

Pampas is the name of the temperate grassland of South America. The Pampas of South America are a grassland biome. They are flat, fertile plains that covers an area of 300,000 sq. miles or 777,000 square kilometers, from the Atlantic Ocean to the Andes Mountains. It is found primarily in Argentina and extends into Uruguay.

The highest annual precipitation occurs in Amazon basin. Relative to other large river basins in the world the Amazon receives high levels of rainfall annually. The tropical rainforest that occupies a large proportion of the basin is supported by high amounts of rainfall, where on average annual rain fall is over 3,000 millimetres.

Temperate coniferous forests mostly grow in the belt lying between 50° N and 70° N. Temperate coniferous forests are found predominantly in areas with warm summers and cool winters, and vary in their kinds of plant life. Temperate coniferous forests are common in the coastal areas of regions that have mild winters and heavy rainfall, or inland in drier climates or montane areas.

Mid-latitude forests have deciduous forests and coniferous forests.

Mosses and Lichens are the characteristic vegetation of Tundra region. Tundra lies to the north of the taiga in North America and Eurasia; the vegetation is dominated by grasses, sedges, lichens, mosses, heathers, and low shrubs.

In India, Tropical Moist Deciduous Forest occupies the largest area. The tropical monsoon deciduous forests are found in areas receiving annual rainfall of 100 to 200 cms in India, with a distinct dry and rainy seasons and a small range of temperature.

Veld type of vegetation is associated with South Africa. To most South African farmers today the "veld" refers to the land they work, much of which has long since ceased to be "natural". Various types of veld may be discerned, depending upon local characteristics such as elevation, cultivation, and climate. Thus, there is a high veld, a middle veld, a low veld, a bush veld, a thorn veld, and a grass veld.

Indonesia is rich in oil. Indonesia is rich in resources, with proven and potential conventional energy reserves of more than 7 billion barrels of oil and about 150 trillion cubic feet of gas.

Tundra-market gardening is wrongly matched. Approximately 1,700 species of plants live on the Arctic tundra, including flowering plants, dwarf shrubs, herbs, grasses, mosses, and lichens. The tundra is characterized by permafrost, a layer of soil and partially decomposed organic matter that is frozen year-round.

China produces the largest amount of crude steel of the world. The biggest steel producing country is currently China, which accounted for 49.2% of world steel production in 2017.

Many Savanna regions are unable to support good crops because they have large tall grasses which form a canopy over the good crops and do not allow them to grow.

Los Angeles is also a major producer of furniture and fixtures, as well as petroleum products and chemicals, print material, rubber goods, electronic equipment, and glass, pottery, ceramics, and cement products. Los Angeles is the nation's largest port in terms of value of goods handled and tonnage.

Deciduous means "to fall off at maturity". It is used for trees that lose leaves seasonally,mostly in Autumn. eg. Teak, Oak, Maple, Elm.

The process in which a substance absorbs moisture from atmosphere till the moment it gets totally dissolved in that moisture & forms solution is called deliquescence. For such an activity warm, moist & airy conditions are required.

Rice in Myanmar is cultivated along the deltas of Irrawaddy river. Rice is the most important food grain in Burma (Myanmar). Nearly 60% of the country’s total rice crop comes from the 4 states that occupy the Irrawaddy River Delta and adjacent coastline to the east, around the Gulf of Martaban.

Bauxite ore is the main source of aluminum and contains the aluminum minerals gibbsite, boehmite, and diaspore.

In Austrialia a tropical cyclone is named as Willy Willy. In different parts of the world it is known by different names like, Hurricane in Caribbean Sea, U.S.A. , Mexico, Typhoon in Japan, China, Phillipines; Cyclone in South Asia.

Tundra forests occur in polar regions and also in high altitudes (alpines) of Himalayas and Andes. These forests are composed of mosses & lichens which are small living organisms.

During an earthquake the energy store in earth are released from focus. Epicenter is the point on earth's surface that lies directly above focus.

Deserts such as Sahara are generally found between 20° and 30° latitudes in western parts of the continents. This is because these regions have offshore winds throughout the year.

The largest (nonpolar) desert in the world is the Sahara, in north Africa, which spans an area measured at roughly 3.5 million square miles. The United States' contiguous 48 states could easily fit in the desert. It spans more than 3,000 miles across Africa, stretching from the Atlantic Ocean to the Red Sea.

Monsoon type of climate suffers change due to shifting of the World's Pressure Belts. The shifting of the pressure belts cause seasonal changes in the climate, especially between latitudes 30° and 40° in both hemispheres.

The major oil producing area in U.S.A. is Texas-Louisiana belt. Texas serve as the headquarters for oil production activities in the basin.

Mid Latitude Grasslands (prairies) termed as "Bread basket of the world" as it is food grain rich region. As 'Wheat' is temperate food crop. It is grown in this region extensively in big farms for commercial purpose.

Temperate grassland of the world is called "the bread basket of the world". "The breadbasket of Europe" Ukraine is known as the breadbasket of Europe; along with the U.S. and Australia, it's one of the world's top wheat exporters. And a lot of the wheat leaves the country via the Crimean peninsula.

The greatest diversity of animal and plant species occurs in tropical moist forests. Tropical rainforests support the greatest diversity of living organisms on Earth. Although they cover less than 2% of Earth's surface, rainforests house more than 50% of the plants and animals on Earth. Rainforests have 170,000 of the world's 250,000 known plant species.

Wheat is the temperate crop and it is grown vastly in Australia adding its value to Australian economy. Most of southern Australia lies in temperate zone.

Mediterranean Climate Region is found on the western coast of continents between 30° and 40° latitudes. Mediterranean climate zones are typically located along the western sides of continents, between roughly 30° and 45° north and south of the equator.

U.S.A is the largest oil producer in the world. The United States is the top oil- producing country in the world, with an average of 14.86 million b/d, which accounts for 15.3% of the world's oil.

In the world production of natural rubber, India ranks Fourth. Output estimates released by the Association of Natural Rubber Producing Countries (ANRPC) showed India had slipped to the fifth spot in production, below Vietnam and China, in 2013. India was at the fourth place in 2012 after Thailand, Indonesia and Malaysia.

Trees with hardwood and dense canopy are generally found in Evergreen forests. Hardwood trees like rosewood, ebony, mahogany are common.

Petroleum is generally found in folded marine sedimentary rocks. Sedimentary rocks Petroleum may occur in any porous rock, but it is usually found in sedimentary rocks such as sandstone or limestone. Sandstones, because of the inherent porosity between their grains, often become excellent reservoirs for oil or natural gas.