Question

⫸QUESTION :

see the attachment and answer please

➪NOTE :-
✮this is from grade 8
☆lesson :- some natural phenomenon
✮only correct answers
☆no irrevelent answers
✮no spam ​​

Answer 1

Required Answer:

• 1. Earthquake → (i) Sudden shaking of earth

• 2. Tsunami → (h) Earthquake under sea

• 3. Electron → (g) Negatively charged

• 4. Thunder → (f) Loud sound due to lightning

• 5. Lightning rod → (d) Protects building

• 6. Ritcher scale → (e) Power of earthquake

• 7. Waves recorder → (c) Seisomograph

• 8. Copper → (j) Conductor

• 9. Bad conductor → (b) Plastic

• 10. Discharge → (a) Loss charge

$\underline{\Large {\tt{Explanation:}}}$

• 1. Earthquake → (i) Sudden shaking of earth

$\longmapsto$ Earthquake is defined as sudden shaking of the earth ,it means it happens when the earth's crust shakes. It is a sudden shock.

• 2. Tsunami → (h) Earthquake under sea

$\longmapsto$ Tsunamis are the earthquakes happen below the sea. They are huge waves that are formed when the strike the coast following and earthquake.

• 3. Electron → (g) Negatively charged

$\longmapsto$ Electrons are the part of an atom that revolve around the nucleus and are negatively charged.

• 4. Thunder → (f) Loud sound due to lightning

$\longmapsto$ Thunder is a loud sound of lightening. It is an explosion of sound produced due to lightning.

• 5. Lightning rod → (d) Protects building

$\longmapsto$ Lightning conductor /Lightning rod is a device that protects building. When lightning occurs, the lightning conductor carries charges to the ground without any damage to the building.

• 6. Ritcher scale → (e) Power of earthquake

$\longmapsto$ Ritcher scale is the device that is used to know the intensity/power of the earthquake.

• 7. Waves recorder → (c) Seisomograph

$\longmapsto$ Waves caused due to earthquake are called seismic waves and it is recorded by a device called seismograph.

• 8. Copper → (j) Conductor

$\longmapsto$ Copper allows electric charges to ᴘᴀꜱꜱ through it. Thus, it is a good conductor.

• 9. Bad conductor → (b) Plastic

$\longmapsto$ Plastic doesn't allow electric charges to ᴘᴀꜱꜱ through it. Thus, it is a bad conductor.

• Discharge → (a) Loss charge

$\longmapsto$ When something is discharged, it actually meant it has lost charges. For example : Lightning is an electrical discharge.

Answer 2

hello friend , here is your answer. I konw very well about this.

1. earthquake= sudden shaking of earth
2. Tsunami = earthquake under sea
3. electrons = negatively charged
4. thunder = loud sound during to lighting
5. lighting rod= proctects bulding
6. Richer scale = power of earthquake
7. waves recorder= seismograph
8. copper = conductor
9. bad conducter = plastic
10. discharge = loses charge.

i have studied at my 6th book so it is easy for me.

thanku friend for easy question