Question

pls answer this very urgent
correct answer = brainliest +5 thanks​

Answer 1

Answer:

Praveen/Raveena of 215 PusabRoad ,Delhi. Youobservedthatnowadaysyoungsters

lackendurance,teamspirit,disciplineandpatiencewhichisacauseofconcern.Writealetterto

theeditorofanationalnewspaperhighlightingtheimportanceofsportsandgameswhich

makesyoungmindsdisciplinedandhelpsthemtodevelopinahealthyway.(Takehintsfromthe

Unit-SportsofMyEnglishReaderandalsopresentyourownviews.)

the place with (/) and write the

correct preposition in the given blanks.

I walked the main market where

I picked up a bike. I pedalled the long strip of road

2.

flanked green trees, an occasional hut, and small

3.

rivulets. People were wading these or

4.

crossing the rivulets tiny fishermen's boats. I was

5.

struck the shades of green and the tranquillity of

6.

the place. I wandered the main road onto a

7.

winding mud path. Then I rode a bamboo bridge

8.

that took me a native Assamese dwelling.

9.

Explanation:

Praveen/Raveena of 215 PusabRoad ,Delhi. Youobservedthatnowadaysyoungsters

lackendurance,teamspirit,disciplineandpatiencewhichisacauseofconcern.Writealetterto

theeditorofanationalnewspaperhighlightingtheimportanceofsportsandgameswhich

makesyoungmindsdisciplinedandhelpsthemtodevelopinahealthyway.(Takehintsfromthe

Unit-SportsofMyEnglishReaderandalsopresentyourownviews.)

the place with (/) and write the

correct preposition in the given blanks.

I walked the main market where

I picked up a bike. I pedalled the long strip of road

2.

flanked green trees, an occasional hut, and small

3.

rivulets. People were wading these or

4.

crossing the rivulets tiny fishermen's boats. I was

5.

struck the shades of green and the tranquillity of

6.

the place. I wandered the main road onto a

7.

winding mud path. Then I rode a bamboo bridge

8.

that took me a native Assamese dwelling.

9.

Answer 2

Question 1

1) Acid rain

2) Methane

3) Heave motor vehicles

4) White phosphorous

5) Carbon Dioxide

Question 2

The two characteristics of an ideal fuel are as follows:

• The fuel should have high calorific value.
• The fuel should have proper ignition temperature.

Question 3

Methane and LPG are considered ideal for use as domestic fuels because they have a high calorific value. They are cleaner fuels and leave no residues. Moreover, they donot release harmful gases into the atmosphere.

Question 4

Types of coal are as follows:

1. Lignite is the youngest form of coal. It is soft and ranges in color from black to shades of brown. As a result, it’s sometimes called brown coal. Lignite is mainly used for power generation and accounts for 17 percent of the world’s coal reserves.
2. After millions of years, continued pressure and temperature convert lignite into   sub-bituminous coal. It burns more cleanly than other types of coal due to its low sulfur content. Sub-bituminous coal has applications in power generation and also in industrial processes. This type of coal makes up 30 percent of the world’s coal reserves.
3. Bituminous coal  is harder and blacker than lignite and sub-bituminous coal, and can be divided into two types: thermal and metallurgical. Together, they make up 52 percent of the world’s coal reserves. Thermal coal is mostly used for power generation, cement manufacturing and other industrial purposes, while metallurgical coal is used primarily for manufacturing iron and steel.
4. Anthracite  is the most mature coal and thus has the highest carbon content of any type of coal. It is frequently used for home heating and, accounting for about 1 percent of the world’s total coal reserves, represents a very small portion of the overall market. Anthracite coal can be used as a smokeless fuel in domestic and industrial contexts.