1. Who invented the TV and when?
Ans. The TV was invented by Baird in 1926.
2. The
telephone was connected to a computer network?
Ans. The telephone was connected to a computer network in 1975.
3. What
percentage of dry paper contains water?
Ans. The dry paper contains 10% water. Radio bonds are also a type of paper
4. Which two gases are the most present in the
air?
Ans. Hydrogen and nitrogen are most abundant
in the air.
5. How much silk can silkworm produce in its
entire life?
Ans. A silkworm can produce a thousand yards
of silk in its lifetime.
6. What is the baby's pulse rate at birth?
Ans. At birth, the baby's pulse rate is 135 beats
per minute.
7. Why and how does a lunar eclipse happen?
Ans. A lunar eclipse occurs when the earth comes
between the moon and the sun.
8. Which animal's horn is made of hair?
Ans. Rhinoceros horns are made of hair.
9. Who invented the bandage method?
Ans. The method of bandage was invented by Ibn Zakariya.
10. Which part of the human body is made up of
different metals?
Ans. Human hair is made of different
metals.
11. Why don't we feel pain when we cut our
nails and hair?
Ans. Hair and nails do not have sensitive cells so we do not feel
pain.
12. What is the maximum length of a human
heart?
Ans. The length of the human heart is at most
six inches.
13. Which animal wakes up six months and sleeps
six months?
Ans. A frog is an animal that sleeps for six
months and wakes up for six months. And the frog's eyes are on his head.
14. In which country is the world's smallest
frog found?
Ans. The world's smallest frog is found in Brazil
and its length is less than 1 cm.
15. When did the Nobel Prize series begin?
Ans. The Nobel Prize series began in 1901.
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