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21
The hazards of radiation belts include
Discuss
Answer & Solution
Answer: Option D
Solution:
All of the above
22
The great Victoria Desert is located in
Discuss
Answer & Solution
Answer: Option C
Solution:
The Great Victoria Desert, an interim Australian bioregion, is a sparsely populated desert area in Western Australia and South Australia.
23
The intersecting lines drawn on maps and globes are
Discuss
Answer & Solution
Answer: Option C
Solution:
Intersecting lines drawn on maps and globes are called Geographic Grid.
24
The light of distant stars is affected by
Discuss
Answer & Solution
Answer: Option C
Solution:
both (a) and (b)
25
The landmass of which of the following continents is the least?
Discuss
Answer & Solution
Answer: Option C
Solution:
Australia has the least landmass, at 5.9% of the Earth's land. Australia is a single country continent and also the smallest of all the seven continents.
26
Without ____ the equator would be much hotter than it is while the poles would be much cooler.
Discuss
Answer & Solution
Answer: Option D
Solution:
All are similar terms
27
The habitats valuable for commercially harvested species are called
Discuss
Answer & Solution
Answer: Option B
Solution:
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.

Seagrasses are not true grasses but are flowering plants that carry out their entire lifecycles underwater. Like all plants, seagrasses rely on sunlight to convert carbon dioxide into food/energy (via a process called photosynthesis). Therefore, they only succeed in clear, shallow waters. When the conditions are just right, seagrasses can densely cover the sea floor, creating an ecosystem known as the seagrass bed or seagrass meadow.

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened with destruction. For example, forests are considered as biodiversity hotspots.
28
Which of the following is tropical grassland?
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Answer & Solution
Answer: Option B
Solution:
Tropical grasslands, or savannas, are also the homes of primates in Africa and Asia; no savanna-living primates exist in South America.
29
With the disintegration of USSR in end 1991, comprised of ____ Union Republics.
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Answer & Solution
Answer: Option A
Solution:
With the disintegration of USSR in end 1991 comprised of 15 union republics.
30
The iron and steel industries of which of the following countries are almost fully dependent on imported raw materials?
Discuss
Answer & Solution
Answer: Option B
Solution:
Japan