Test: The Temperate Grasslands: Prairies- 1 - Class 5 MCQ

The Temperate Zone is the region of the Earth that lies between the Tropics and the Polar regions. It extends from 23.5° to 66.5° North and South of the Equator. This region experiences moderate climate conditions with four distinct seasons, namely spring, summer, fall, and winter. The temperature in this zone is not too hot and not too cold, and it receives moderate amounts of rainfall throughout the year. This zone is also known as the middle latitudes and is characterized by grasslands, deciduous forests, and coniferous forests.

The Grasslands in South America are known as Pampas, while in Russia, they are called Steppes. In Australia, these grasslands are known as Downs, while in South Africa, they are called Velds. 

The level of rainfall on the eastern edge of Prairies is around 100 cm, while on the western edge it is about 30 cm. This difference in rainfall affects the flora and fauna of the prairies, with the eastern edge having tall grass and the western edge having thorny grass. The availability of irrigation facilities due to the presence of rivers like Mississippi and Missouri complements the natural rainfall.

Prairies are known for their vast, open grasslands and are found in North America. The three basic subtypes of vegetation found in Prairies are:

• Tall grass prairie: This type of prairie has the tallest grasses, some reaching heights of over 2 meters. This type of prairie is found in areas with higher rainfall and nutrient-rich soils.
• Mixed grass prairie: This type of prairie has a mix of tall and short grasses and is found in areas with moderate rainfall and soil nutrients.
• Short grass plains: This type of prairie has the shortest grasses, usually less than a meter tall, and is found in areas with lower rainfall and nutrient-poor soils.

The main crop grown in the Prairies is wheat. The Prairies are known as the "breadbasket" of North America due to their extensive wheat cultivation. Other crops such as canola, barley, and oats are also grown in the region, but wheat is the most important crop. The climate and fertile soil of the Prairies are ideal for wheat cultivation, and the region produces a large portion of the world's wheat supply.

Yes, that's correct. Prairies are called treeless grasslands because they receive low and erratic rainfall, which makes it difficult for trees to establish deep roots and survive. The lack of trees also means that grasses are the dominant vegetation type in the prairies.

The Mississippi River complements the natural rainfall in Prairies and provides irrigation facilities. The river is the largest in North America and runs through or along the borders of 10 US states. The river is a major source of water for irrigation in the Great Plains region, including the Prairies. The water from the river is used to irrigate crops such as wheat, corn, and soybeans, which are the main crops grown in the region.

The Prairies, also known as the Canadian Prairies, are a region of Canada that includes Alberta, Saskatchewan, and Manitoba. The main economic activities in this region are farming and animal rearing.

The Prairies, also known as the Canadian Prairies, are a region of Canada that includes Alberta, Saskatchewan, and Manitoba. While the region is not known for its abundance of minerals, it does have some mineral resources, mainly lignite coal and mineral oil.

Mineral oil, also known as crude oil, is another important mineral resource found in the Prairies. The region has large reserves of oil in the form of oil sands, especially in Alberta. The oil and gas industry is a significant contributor to the economy of the region.

While gold and silver are found in some parts of Canada, they are not commonly found in the Prairies. Copper and iron are also not significant mineral resources in the region. Therefore, the correct answer is c) Lignite coal and mineral oil.

has vast agricultural lands, and it requires a significant amount of labour to cultivate and harvest crops. With the help of machines, farmers can automate many tasks that were previously done by hand, such as plowing, planting, and harvesting.

While machines can increase the amount of crops grown and reduce the cost of farming, their main purpose is to replace human labour. The use of machines has made farming in the Prairies more efficient and has allowed farmers to manage larger farms with fewer people.

Therefore, option a) To replace human labour is the correct answer.