CBSE > Class 09 | CBSE Board | Homework Help

After sunset, the surface near the earth cools down more than air in succeeding layers above. Hence, the distant sounds can be heard as the sound waves get refracted and reach the receiver which is present at a distant point. During the day, the sound bends away from the ground; during the night, it bends towards the ground. Hence at night, you have additional "sound" reaching you, making it louder.

4Thank You

ANSWER

World war

Posted by Attitude Boy Kaushik 2 years, 10 months ago

CBSE > Class 09 > Social Science

1 answers

Adarsh Ojha 2 years, 10 months ago

World War I (28 July 1914 – 11 November 1918), often abbreviated as WWI, also known as the Great War, was one of the deadliest global conflicts in history. The main belligerents included much of Europe and their colonial empires, the Russian Empire, the United States, the Ottoman Empire and the Japanese Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. World War II or the Second World War, often abbreviated as WWII or WW2, was a global conflict that lasted from 1939 to 1945. The vast majority of the world's countries, including all of the great powers, fought as part of two opposing military alliances: the Allies and the Axis. Many participants threw their economic, industrial, and scientific capabilities behind this total war, blurring the distinction between civilian and military resources. Aircraft played a major role, enabling the strategic bombing of population centres and the only two nuclear weapons ever used in war.

1Thank You

ANSWER

What are polyatomic ions? Give examples.

Posted by Chethan Chethu 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Ridhima Gehlot 2 years, 9 months ago

The group of atoms carrying a charge is called polyatomic ions.Examples of Polyatomic ions are - Ammonia, Phospate, Sulphate, Sulphite, Nitrate etc

0Thank You

Adarsh Ojha 2 years, 10 months ago

Those ions which are formed from groups of joined atoms are called polyatomic ions. Eg- sodium ion, potassium ion, ammonium ion, chloride ion etc.

1Thank You

ANSWER

Shekhar Vihar ke mandir mein rakhen bahut granthon ka Parichay dijiye

Posted by Ashmit Srivastava 2 years, 10 months ago

CBSE > Class 09 > हिंदी ए

0 answers

ANSWER

Explain how the and operater works on text.

Posted by Aarush . 2 years, 10 months ago

CBSE > Class 09 > Information Technology (402)

1 answers

Alok Pandey 2 years, 10 months ago

Hello

3Thank You

ANSWER

You saved your friend from being a victim.

Posted by Srihaasini Eturu 2 years, 10 months ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

ANSWER

What is speaker notes in presentation

Posted by Vidhi Ahlawat 2 years, 10 months ago

CBSE > Class 09 > Information Technology (402)

1 answers

Mahavir Tiwari 2 years, 10 months ago

vhc

0Thank You

ANSWER

What is audio and types ?

Posted by Jay Khandelwal 2 years, 10 months ago

CBSE > Class 09 > Information Technology (402)

0 answers

ANSWER

Why did kezia's grandmother send her to the drawing room every Sunday afternoon

Posted by Varsha ☺️ 2 years, 10 months ago

CBSE > Class 09 > English Lang & Lit. (184)

3 answers

Lavanya P 2 years, 10 months ago

To talk interact with parents

1Thank You

Aarohi Parmar 2 years, 10 months ago

Her grandmother sent her so that she can talk more with her parents and became friendly to them.

0Thank You

Bavana S 2 years, 10 months ago

To talk with her father and to get to know about her father

0Thank You

ANSWER

What is inverse square law applications

Posted by Saish Dongare 2 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Saish Dongare 2 years, 9 months ago

Ok faizan

1Thank You

Faizan Khan Faizan Khan 2 years, 10 months ago

What is xylem

3Thank You

Faizan Khan Faizan Khan 2 years, 10 months ago

What is tissue

2Thank You

ANSWER

What is the use of intersecting charts in a spreadsheet

Posted by Deepak Bohra 2 years, 10 months ago

CBSE > Class 09 > Information Technology (402)

0 answers

ANSWER

लेखक अपने कमरे में लेटे हुए क्या देखा करता था मेरा छोटा सा निजी पुस्तकालय

Posted by Shakshi Pandey 2 years, 10 months ago

CBSE > Class 09 > हिंदी ब

3 answers

Kangna Arora 2 years, 9 months ago

Veh apni library ke charon aur thasathas bhari pustaje dekhte rehte the aur baye aur ki khidhki se bahar supari ke ped ke chalardar paate dekhte rehte the

0Thank You

Hussain Khediwala 2 years, 9 months ago

Paan ke jhadh ke patte

0Thank You

Radhika Pawar 2 years, 9 months ago

Apani लाइब्रेरी ko dekha karthe the

1Thank You

ANSWER

If ^2=1.41 then 1/^2=?

Posted by Karthik Kiran 2 years, 10 months ago

CBSE > Class 09 > Mathematics