Question

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Answer 1

Answer:

1.A globe is spherical model of earth.frest water depletion,ocean over fishing and deforestation are the three limitation of earth.

2.mountains are useful for us in different things such as flora and fauna .the water from mountain s are also useful for us in methods like irrigation.

3.the first largest river is nile and the second largest in s Congo river.the main feature of Congo river is ,it has 3 contrasting section.

4.internet works through a specialised computer called routers.routers help us in improvement of computer access and to connect to each devices .It also helps in sending and receiving data

5.#water shortage

# stress to ecosystem

#flooding

#drought

Explanation:

hope u find it helpful

Answer 2

a. A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere which serve purposes similar to some maps, but unlike maps.

The limitations of a globe are:

1. A globe cannot give the correct idea of the distances between two places.
2. A globe is too small to get the actual size of an area.
3. The types of terrain and landscape of a place cannot really be figured on a globe.

b. Mountains provide for the freshwater needs of more than half of humanity, and are, in effect, the water towers of the world. The world's mountains encompass some of the most spectacular landscapes, a great diversity of species and habitat types, and distinctive human communities.Mountains help the man with a supply of water for irrigation, food, hydroelectricity, shelter, freshwater and more. The snow and the glacier from the mountains supply water to the rivers and lakes. The water is used for irrigation, generation of electricity, drinking, food, and other purpose.

c. The longest river of Africa is Nile river and the second longest river of Africa is Congo River.

The features of Congo river are:

1. The country's major topographical features include a large river basin, a major valley, high plateaus, three mountain ranges, and a low coastal plain.
2. Most of the country is composed of the central Congo basin, a vast rolling plain with an average elevation of about 1,700 feet (520 metres) above sea level.

d. The uses of Internet are:

It is a network that routes packets from a source computer to a destination computer. The Internet is made up of a massive network of specialized computers called routers. Each router's job is to know how to move packets along from their source to their destination.

e. The problems associated with global warming are:

1. Deforestation
2. rising maximum temperatures.
3. rising minimum temperatures.
4. rising sea levels.