HISTORY
VERY SHORT QUESTIONS 1X4=4
1. What was the most attractive discovery of Mohenjodaro?
2. In which place semi-precious stones were found?
3. What do you understand by Scribe?
4. What do you understand by Granary?
LONG QUESTIONS 2X3=6
1. What were the main features of Town Planning of Harappan Civilisation?
2. Mention any three causes of the decline of Harappan Civilisation.
GEOGRAPHY
VERY SHORT QUESTIONS 1X8=8
1. What do you mean by Constellation?
2. What is Galaxy?
3. Which is the closest neighbour of the solar system?
4. Name the two main gases present in the Sun.
5. Why the planets revolve around the sun?
6. Which gas is used in refrigerator?
7. Which planet is referred as the blue planet?
8. Increase of which gas leads to Global Warming?
LONG QUESTIONS 4X3=12
1. Mention any two causes of water pollution.
2. ‘Air is not fit for breathing now-a-days”-why?
3. What do you mean by solar system? Name its different planets.
4. Draw the “Phases of the Moon”.
Answers
Hyy Dude
Very short Question Answer
1). The name Mohenjo-daro is reputed to signify “the mound of the dead.” The archaeological importance of the site was first recognized in 1922, one year after the discovery of Harappa. Subsequent excavations revealed that the mounds contain the remains of what was once the largest city of the Indus civilization.
2. They are mined in countries such as Kenya, Tanzania and Mozambique, which also produce precious gems like rubies and sapphires. Sometimes the name of a gemstone can give us a clue as to its country of origin.
3. a person whose job was to write copies of documents, especially before printing was invented.
4. a large building for storing grains.
Long Question Answer
1. Following are the important features of the town planning of the Harappan cities: The Harappan cities were generally divided into two main parts - the raised area; known as the 'Citadel', and the lower town. The Citadel was more in height because the buildings in it were built on mud brick platforms.
2.The decline of Harappan culture has evoked the historians to find out its causes.
Law of Nature: ...
Floods: ...
Earthquakes: ...
Change of the Course of the Indus: ...
Plague: ...
Foreign Invasion:
Very short Question Answer
1. A constellation is a name given to a group of stars in the sky that make up a certain pattern. Sometimes this pattern is imaginary. When the sky is clear these stars can be seen from Earth without the use of a telescope. ... Constellation is a Latin word meaning “set with stars”.
2. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity.
3. Well, the Moon is the closest body, less than a quarter of a million miles away, then comes planet Mars at closest, is about 35 million miles away, at its farthest, about 235 million miles. Closest star is obviously the Sun and the closest star-system is Alpha Centauri B at 4.3 light-years from Earth.
4. The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.
5. Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.
6.The most commonly used refrigerant in refrigerators is R 134a which is tetrafluoroethylene, which does not deteriorate ozone layers. Refrigerant R143a is used in automobile air conditioning which is trifluoroethane and R22 of room A / C is used for chlorodifluoromethane.
7.Neptune, the other blue planet, is the eighth planet in our solar system. Neptune is an ice giant.
8.Global warming occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface.
Long Question Answer
1.Various Causes of Water Pollution
Industrial Waste. ...
Sewage and Wastewater. ...
Mining Activities. ...
Marine Dumping. ...
Accidental Oil Leakage. ...
The burning of fossil fuels. ...
Chemical fertilizers and pesticides. ...
Leakage From Sewer Lines
2 . Plz search on google
3.The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies.
4. Plz search on google
Hope it's helps you ✨