Question

c. Answer the following questions in brief.
1. Name all the continents of the lithosphere.
2. Which ocean is shaped like an “S” and which continents do
3. Name the layers of the atmosphere.
4. Name the four oceans in decreasing order of their size.
5. What is the biosphere? How many species of life forms do
D. Answer the following questions in detail.
1. Write an account of the continent of Asia. I
2. What are the four realms of the Earth? Explain why each
3. Why is the atmosphere important to us?
4. Why is the biosphere such an important realm?
5. Explain why people do not live in Antarctica.
Compare and contrast:​

Answer 1

Answer:

a)

1. These continents are – Asia, Europe, Africa, North America, South America, Australia and Antarctica. Look at the map of the world (Figure 5.1) and notice that the greater part of the land mass lies in the Northern Hemisphere. Asia is the largest continent. It covers about one- third of the total land area of the earth.
2. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and the Americas to the west.
3. the troposphere, stratosphere, mesosphere and thermosphere

D)

1. Asia is the largest of the world's continents, covering approximately 30 percent of the Earth's land area. It is also the world's most populous continent, with roughly 60 percent of the total population. Asia makes up the eastern portion of the Eurasian supercontinent; Europe occupies the western portion.
2. These four subsystems are known as spheres. Geographers break down the Earth's systems into four spheres that make up the world's air (atmosphere), water (hydrosphere), land (geosphere), and living organisms (biosphere).
3. The atmosphere protects living things from the Sun's most harmful rays. Gases reflect or absorb the strongest rays of sunlight (figure below). The atmosphere shields Earth from the most harmful solar rays.
4. The principal divisions (in descending order of area) are the: Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern (Antarctic) Ocean, and Arctic Ocean. Smaller regions of the oceans are called seas, gulfs, bays, straits, and other terms. Geologically, an ocean is an area of oceanic crust covered by water.
5. The biosphere supports between 3 and 30 million species of plants, animals, fungi, single-celled prokaryotes such as bacteria, and single-celled eukaryotes such as protozoans (Figure 1). Of this total, only about 1.4 million species have been named so far, and fewer than 1 percent have been studied for their ecological relationships and their role in ecosystems