6.
7.
1. Why was early man called his own beast of burden ?
2. Why is the wheel considered the most important invention in history?
3. What are the modern means of transport ?
4. Mention the important international roads.
5. Describe a highway.
How does growing traffic cause pollution ?
How can we avoid accidents ?
8. What are the advantages of road transport as against rail transport ?
9. What are the advantages of water transport ?
10. Which two oceans are connected by the Panama Canal ?
11. How did the construction of the Suez Canal help India ?
12. Give examples to show that rivers and canals can serve as useful waterways.
Define the following:
1. Highways
2. Cargo
6. Airport
3. Roads
erways
Answers
7. By reducing over speed and by obeying the traffic rules
Answer:
Q7-Ans 1= Any animal that helps carry heavy loads like mules, llamas, donkeys are called the burden animals. Any kind of domesticated animals that are trained in doing tasks for the humans are also referred to as the burden animals. These animals are really helpful for the people to carry load from one place to another.
Ans2= THE WHEEL is often described as the most important invention of all time – it had a fundamental impact on transport and later on agriculture and industry. ... Soon, it became common for the wheels to turn around a fixed axle. Wheels with spokes, first made around 2000 BC, were lighter, enabling vehicles to move faster.
Ans3=Buses, cars, aeroplanes, steam ships, etc. are some of the modern means of transport
Ans4=Roads make a crucial contribution to economic development and growth and bring important social benefits. They are of vital importance in order to make a nation grow and develop. In addition, providing access to employment, social, health and education services makes a road network crucial in fighting against poverty.
Ans5=Road transport accounts for a significant portion of air pollution in cities and towns, causing serious pollution problems like carbon monoxide and smog. ... Traffic fumes contain harmful chemicals that pollute the atmosphere. Road traffic emissions produce greenhouse gases that contribute to global warming.
Ans8=There are many advantages of road transport in comparison to other means of transport. The investment required in road transport is very less compared to other modes of transport such as railways and air transport. The cost of construction, operating cost and maintaining roads is cheaper than that of the railways.
Ans9=Less Maintenance Cost
: Maintenance cost in rail and road transport is quite high but maintenance cost of water transport is quite less.
: .Cheap..
: Useful for Bulky Goods: ...
:Useful During Natural Calamities: ...
: Helpful in Defence: ...
: Important for Foreign Trade: ...
: Slow Speed: ...
: More Risky
Ans10=The Panama Canal is a constructed waterway that connects the Atlantic and Pacific oceans across the Isthmus of Panama.
Ans11=In 1869, the Suez Canal was opened, greatly reducing the distance between Britain and India by some 4,500 miles as ships no longer needed to travel round southern Africa. The Suez Canal together with the reliable service of steam-powered liners led to an increase in merchant and passenger shipping.
Ans12=Canals are man-made waterways. By building canals, you could connect cities by water and make inland transportation quicker and easier. In April 1817, New York authorized the construction of the Erie Canal. ... Not only were goods able to be transported faster, but the cost went down as well.
Q2Define the following
Ans 1= A main road, especially one connecting major towns or cities.
Ans2=goods carried on a ship, aircraft, or motor vehicle.
Ans3=a complex of runways and buildings for the take-off, landing, and maintenance of civil aircraft, with facilities for passengers.
Ans4=a wide way leading from one place to another, especially one with a specially prepared surface which vehicles can use.