Naphthalene balls disappear with time without leaving any soli
We can get the smell of perfume sitting several metres away.
Naphthalene is a yolatile solid organic compound which can un
Answers
Answer:
We can get the smell of perfume sitting several metres away. Answer: (a): Naphthalene balls disappear with time without leaving any solid because they undergo sublimation i.e., they directly change into vapour without passing through the liquid state.
Answer:
⚞QUESTION⚟
Why is Atmosphere important for Us?
⚛Required Answer⚛
✤We breathe in oxygen which is one of the components of atmosphere.
✤ We breathe out carbon dioxide which in turn is taken in by plants in thier respiration.
✤ The atmosphere prevents harmful rays of the sun from reaching us.
✤ The green plants take in carbon dioxide use sunlight and water to photosynthesis and we get delicious fruits vegetables and grains from them.
✤ These give us proteins carbohydrates sugars fats minerals and other nutrients that we need.
✤ The atmospheric winds transport water from the oceans deep into the continents in the form of rain.
✤ Atmospheric winds erode rocks and are responsible for the formation of many kinds of soils with whose fertility we grow many kinds of crops.
✤ Atmosphere helps in cooling monsoon rains.
✤ Atmosphere helps in diffusion of perfumes and helps in the travelling of sound waves.
✤ Thus we can say atmosphere is important for us.
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