Give scientific reasons - (Marks 20)
1) The noise of bubbles in a kettle rises on heating but stops as the water boils.
2) It is demanded that weedicides containing glyphosate chemicals be banned.
3) During a meal though we eat a variety of food items like desserts along with a little radish; the burp consists mainly of radish only.
4) Why does your finger stick to an ice tray in a refrigerator?
5) Acute shortage of marine fish occurs when it does not rain in the sea.
6) In summer, we put khus (Vetiver) in an earthen pot which is used for drinking water.
7) Keeping your balance is difficult with eyes closed.
8) When you listen to your voice in a recording, it sounds different than the voice you're used to hearing.
9) After heating, wax melts but salt decrepitates.
10) Retina must be removed within four to six hours after death of an eye donor.
Answers
Answer:
thanks for the update and for the record I have to go to the IPL group
hopefully it will help you
Reasons behind the given situations are:
1. The noise of bubbles in a kettle rises on heating but stops as the water boils because water vapour forms into Bubbles and travels towards upper surface of the vessel and as it cools down the vapour condenses to water and bubble disappears with a taping sound. And while boiling formation of water bubbles does not occur and no sound is observed.
2. It is demanded that weedicides containing glyphosate chemicals be banned because they affect the human health and environment as well.
3. During a meal though we eat a variety of food items like desserts along with a little radish; the burp consists mainly of radish only because of the pungent nature of radish.
4. Finger sticks to the metal tray in a refrigerator because heat from our finger transfers to the tray which leads to melting of Ice and formation of thin layer of water which allows our finger to get sticked to the tray.
5. Due to the shortage of rain in Marine environment the water level decreases and hence results in the lowering of the population of marine fishes.
6. In summer, we put khus (Vetiver) in an earthen pot which is used for drinking water because it allows water to be zfragrant and cool.
7. Keeping your balance is difficult with eyes closed because visual clues passed by our eyes play an important role in maintaining balance.
8. When you listen to your voice in a recording, it sounds different than the voice you're used to hearing this is because sound waves transmitted through air are heard but not bone transmitted sound waves.
9. After heating, wax melts but salt decrepitates this is because of the liquid pressure present in Salt.
10. Retina must be removed within four to six hours after death of an eye donor because retina works even after the death of the person for a short time.