Question

D. Answer briefly: 1. Mention two problems created by increase in road traffic 2. What are the advantages of airways? 3. Which is the best mode of transport? Why? 4. Name any two renewable sources of energy. 5. List two changes that have improved railways in recent times​

Answer 1

Answer:

1) having a high level of various types of pollution like noise pollution, air pollution and land pollution

2)The following are the main advantages:

High Speed:

Minimum Cost:

Strategic Importance:

Easy transport of costly and light goods:

Free from physical barriers:

Useful for Agriculture:

Useful in natural calamities:

3) Rail travel is cheaper. Rail travel is often faster. Trains do run often and alert you to any delays

4) Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy.

5) 1. Better food

2. More cleanliness

Explanation:

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Answer 2

Answer:

Aq 1. having a high level of various types of pollution like noise pollution, air pollution and land pollution. 2. having problems in daily works like creating problems for students and others going to their places, etc.

Q2 The following are the main advantages:

1High Speed.2Minimum Cost.3Strategic Importance.4Easy transport of costly and light goods.5Free from physical barriers.6Useful for Agriculture.7Useful in natural calamities.

Q3Rail travel is cheaper. Rail travel is often faster. Trains do run often and alert you to any delays.

Q4 The major types of renewable energy sources are:

Biomass. Wood and wood waste. Municipal solid waste. Landfill gas and biogas. Ethanol. Biodiesel.

Hydropower.

Geothermal.

Wind.

Solar.

Q5 recent changes Indian Railways has introduced

India got its first CNG train with fumigation technology.

Deen Dayalu coaches: A step towards modern coaches.

India's first semi high-speed train: Gatiman Express.

IRCTC recently revamped its ticket-booking website.

hope this helps you.