Explanation

Explanation

One nautical mile per hour is equal to 1 knot.

One nautical mile is equal to 6,076 feet (1,852 meters/kilometers).

Explanation

All electromagnetic waves (like light, X-rays, and radio waves) travel through a vacuum at the same constant speed.

It is approximately 3 × 10⁸ meters per second.

Explanation

Galvanized iron sheets have a coating of zinc. 

Galvanization is a process where a layer of zinc is applied to iron or steel to protect it from rusting, making "galvanized iron" essentially iron coated with zinc

Explanation

Astronomy is the science that deals with stars, planets, moons, and all objects beyond Earth’s atmosphere.

It helps in understanding the origin, evolution, and structure of the universe.

Explanation

Venus

Eight planets in the solar system

Explanation

Venus
Venus is the closest planet to Earth when it's between Earth and the sun.

At this point, Venus is about 24 million miles away from Earth.

This happens every 584 days.
Mercury
Mercury is the closest planet to Earth while Venus is on the opposite side of the sun from Earth.

At this point, Mercury is about 33 million miles away from Earth.

Explanation

• Neptune is the farthest planet.
• It was visited by the spacecraft Voyager 2.
• It's is a very windy place.
• It has six rings.
• It has 14 moons.

Explanation

1 kilocalorie (kcal) = 4184 joules, commonly used in food energy.

1 calorie (cal) = 4.184 joules, so 1000 cal = 4184 J.

Explanation

Saturn

Saturn is the second largest planet in our solar system.

Titan is the name of the largest moon of Saturn

Ringed Planet is nicked name for Saturn