Question

write down question answer in details
1 Why do organisms take food?


2 What are villi? What is their location and function?


3 Give two examples of conductors and insulators of heat?


4 Explain why an antiacidic tablet is taken when you suffer from acidity?


5 When banking soda is mixed with lemon juice, bubbles are formed with the evolution. Of gas what

type of change it is? Explain.


6 Which of the two changes frequently, weather or climate?​

Answer 1

Answer:

1) organisms take food to build energy . the energy to the organism is supplied through food

Answer 2

Answer: 1) Organisms need to take food to get energy and perform life processes. A living organism undergoes many life processes like nutrition, respiration, digestion, transportation, excretion, blood circulation, and reproduction. The energy to the organism is supplied through food.

2) Villi are small finger-like projections found inside the inner walls of the small intestine. They v increase the surface area for absorption of the digested food. Each villus has a network of thin and small blood vessels close to its surface.

3) Conductors: Copper, aluminum, and iron.

Insulators: Wood, water and air.

4) An antacid tablet is taken when you suffer from acidity. ... An antacid tablet contains bases, such as milk of magnesia(magnesium hydroxide, gelusil,etc. These bases react with excess of acids and neutralize the effect of excessive acid and brings relief.

5) When baking soda (Sodium bicarbonate) is mixed with lemon juice(citric acid), bubbles are formed. These bubbles are formed due to the evolution of carbon dioxide gas. This is a chemical change.

6) Weather changes frequently as compared to climate, because of change in various elements like wind speed, humidity, etc.