Question

2.
VITAL PILU
3. Give any four safety measures to be taken during a thunderstorm.
What is a solar eclipse? What do you mean by a total and a partial eclipse?
4.
clipse ? Explain the total and partiallunar eclipses.​

Answer 1

Ans .3.

safety precautions Indoor:-

Avoid water during a thunderstorm. Lightning can travel through plumbing. Avoid electronic equipment of all types. Lightning can travel through electrical systems and radio and television reception systems.

Thunderstorm/Lightning precautionary measures:

• Get inside as quickly as possible and close your windows and doors when you hear thunder as it means lightning is close enough to strike.
• Stay inside for 30 minutes after hearing the last sound of thunder.
• Avoid open areas like hilltops, fields and beaches. Keep moving towards a safe shelter(strong building) immediately
• Stay away from loose hanging power lines, tractors and from equipment, motor cycle, bicycle etc
• Stay away from open fields, under trees,water bodies. Water is an excellent conductor of electricity, meaning that it can travel far.
• Tents and pavilions are not good options.
• While being in an enclosed car is not as safe as being inside a building,it is a safer option than staying outside. Reason is the metal shell of car disperses the lightning to the ground.
• Common misconception is that thunderstorms have to be nearby for lightning to be a danger. Lightning can strike very far from a thunderstorm.

Ans.4.

solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight. This occurs when the Sun, Moon and Earth are aligned. Such alignment coincides with a new moon indicating the Moon is closest to the ecliptic plane

Total eclipse occurs when the dark silhouette of the Moon completely obscures the intensely bright light of the Sun, allowing the much fainter solar corona to be visible. ... A partial eclipse occurs when the Sun and Moon are not exactly in line with the Earth and the Moon only partially obscures the Sun.

lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, and only on the night of a full moon.

A lunar eclipse can occur only at full moon. A total lunar eclipse can happen only when the sun, Earth and moon are perfectly lined up — anything less than perfection creates a partial lunar eclipse or no eclipse at all.

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