Question

A. Tick () the correct answer.
1. Who invented the gold leaf
4. Which of the following statement
electroscope?
describes the phenomenon of
lightning?
a. Abraham Lincoln
b. Charles F. Richter
a. Sudden disturbance inside the
c. Alexander Fleming
Earth's surface
d. Abraham Bennet
b. Natural electrical discharge in the
clouds
2. Which of the following is not a layer of
c. Flow of charges
the Earth?
d. Earthing causes lightning
a. Crust
b. Core
5. Which of the following is a precaution
c. Magma
d. Mantle
for earthquakes?
3. Which of the following devices is used
a. Working fire-fighting equipment
to protect buildings from lightning?
b. Taking shelter under tables or desks
a. Lightning conductor
c. Moving to open fields away from trees
b. Electroscope
d. All are correct
c. Seismograph
d. Richter Scale
B. State whether the following statements are true or false. Correct the false statements.
1. Thunder is heard before the lightning
5. Point of origin of earthquakes is called
can be seen.
the seismic focus.
2. Electroscope is used to detect whether 6. The mantle is made up of continental
a body possesses charges or not.
and oceanic regions.
3. To charge an ebonite rod, we rub it on
7. It is ok to swim during lightning.
a silk cloth.
4. Charging by friction does not require
physical contact.
C. Match the following.
Column A
Column B
1. Seismograph
a. Accompanied with lightning
b. Benjamin Franklin
2. Core
3. Charging by conduction
4. Thunder
c. Measuring earthquake
d. Innermost layer of Earth's surface
e. Object acquires the same charge of the charging object
5. Lightning conductor

plzzz answer all the question as for class 8 student and its urgent plzzz​

Answer 1

Answer:

plz ask 1 by 1 this is so conjusted I can't understand it

Answer 2

Answer:

(A) 1) Giusto Manetti Battiloro. Answer...