give short & correct answers....
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Q. Write answers to the following questions in your own words....
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(a) How is light scatterred by the air?
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(b) Explain the various properties of
water.
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(c) Why is the density of seawater
more than that of rain water?
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(d) What is the importance of good soil
structure?
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(e) What are the various uses of soil?
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(f) What is the need and importance
of soil testing from the point of
view of farmers?
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(g) What is the importance of air in
transmission of sound?
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(h) Why should a glass bottle completely
filled with water never be kept in
a freezer?
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ans. quicky...
Answers
Answer:
1 In the air, part of the sunlight is scattered. The small particles (molecules, tiny water droplets and dust particles) scatter photons the more, the shorter their wavelength is. ... Due to the scattering of light the wood in the background is seen like behind a bluish veil (“aerial perspektive”).
Answer:
[a] Scattering of Light | Overview of Various Forms of Light Scattering. Raleigh is elastic scattering from small particles such as atoms or molecules, resulting in scattered radiation that occurs in all directions uniformly. Rayleigh scattering is wavelength dependent with shorter wavelengths being more scattered.
[b] The main properties of water are its polarity ,cohesion, adhesion surfaces tension,high specific heat? and evaporative cooling.
A water molecule is slightly charged on both ends.This is because oxygen is more electro negative than Hydrogen....the stream of water bends due to the polarity of water molecules.
[c] Seawater is denser than both fresh water and pure water (density 1.0 kg/l at 4 °C (39 °F)) because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases.
[d] Good soil structure and the right pH provide the best conditions for soil to conserve and re-cycle stored nutrients and to promote soil stability, drainage and moisture conservation. These are key factors for enabling agroecology to succeed and for the land to sustain productivity.
[e] 5 Uses of Soil R-
- Agriculture. Soil has vital nutrients for plants. ...
- Building. Soil is an important part of the building process. ...
- Pottery. Clay soil is used in making ceramics, or pottery. ...
- Medicine. Soil is commonly used in antibiotics. ...
- Beauty Products. Some beauty products are made with soil.
[f] Soil testing analyses is important for farmers to better understand their soil types and deficient of nutrients and it help to minimise the quantity and different types of fertilisers, it become cost benifit to peasants.
[g] Air acts as a medium for transmission of sound. When a sound wave passes through air, the particles of air vibrate back and forth, parallel to the direction of the sound wave.
[h] A glass bottle completely filled with water should not be kept in a freezer because the bottle can break and result in damage. We know that water expands after freezing and if a completely water filled glass bottle is placed in freezer, the water would freeze and would expand resulting in the bottle to break.
Explanation:OH, my hand Broked while writting your answers plzzz...mark me as the Brainliest for my hard writting...plzzz...