Fill in the blanks
1. Archeological sources are
evidences
2. Pressure flaking is a method of
3. A galaxy is a group of billions of
and
of dust and gases.
4. Our Earth is surrounded by a blanket of air called the
5.
is a cod desert
6.Kerala is a narrow
- state.
7.
language was born from the blend of Hindi and Persian languages.
8. Earth is called
planet.
9.
is the closest planet.
10.
are called shooting stars.
11. Red,
white and ochre colours are used in rock paintings.
12. The
of a country plays a major role in its history
Answers
1. Archaeological sources are direct sources as they cannot be changed or altered by humans. There are four types of archaeological sources: inscriptions, monuments, artefacts and coins.
2. Pressure flaking is a method of trimming the edge of a stone tool by removing small lithic flakes by pressing on the stone with a sharp instrument rather than striking it with a percussor.
3. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system.
4. The Earth is wrapped in a blanket of air called the 'atmosphere', which is made up of several layers of gases. The Sun is much hotter than the Earth and it gives off rays of light energy that travel through the atmosphere and reach the Earth's surface.
5. Cold deserts have hot summers but extremely cold winters. These deserts are found in high, flat areas, called plateaus, or mountainous areas in temperate regions of the world. ... Many scientists consider Antarctica to be a type of cold desert because it gets very little rain or snow.
6. Alappuzha
7. Both Farsi and Hindi are Indo-Iranian languages.
8. blue planet
9. Mercury is the closest planet to the sun. As such, it circles the sun faster than all the other planets, which is why Romans named it after their swift-footed messenger god.
10. These streaks are called meteors, often nicknamed 'shooting stars' or 'falling stars'. On a clear night, if you stare at the sky for long enough, you will see one of these meteors, or shooting stars. At certain times of the year, the Earth passes through a comet trail.
11. The predominantly used colours are red, black and white. Red paint is usually attained through the use of ground ochre, while black paint is typically composed of charcoal, or sometimes from minerals such as manganese. White paint is usually created from natural chalk, kaolinite clay or diatomacen.
12. India, China, Indonesia, Egypt and Yugoslavia played a major role in the initial period of NAM.
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