Explanation

Hydrogen (H2) is not a greenhouse gas.

Greenhouse gases are gases in the Earth's atmosphere that absorb and emit radiation, trapping heat and contributing to the Greenhouse Effect.

The main greenhouse gases are:

• Carbon dioxide (CO2)
• Methane (CH4)
• Nitrous oxide (N2O)
• Water vapor (H2O)
• Ozone (O3)
• Chlorofluorocarbons (CFCs)
• Hydrofluorocarbons (HFCs)
• Perfluorocarbons (PFCs)

Explanation

Explanation

• The question asks for the planet with the shortest rotation period, which means the planet that rotates the fastest.
• Jupiter is the correct answer as it rotates the fastest among the given options with a period of 9.9 Earth hours.
• Mercury has a longer rotation period than Jupiter, while Mars has a similar rotation period to Earth.
• Venus has the slowest rotation period among the given options.

Additional Information

• Mercury: It has a rotation period of 58.6 Earth days, which is longer than its orbit around the sun.
• Jupiter: It has a rotation period of 9.9 Earth hours, making it the fastest rotating planet in our solar system.
• Mars: It has a rotation period of 24.6 Earth hours, which is similar to Earth's rotation period.
• Venus: It has a rotation period of 243 Earth days, making it the slowest rotating planet in our solar system.

Explanation

According to the Big Bang theory, the universe is expanding.

The universe is currently 13.8 billion years old.

According to Big Bang Theory, the Universe began about 10-20 billion years ago.

Big Bang theory explains Origin of Universe.

At the time of the big bang, Time was zero.

Explanation

"Polytities" is not a valid or recognized sound made by monkeys.

Monkeys make various vocalizations like screeching, chattering, or howling, but not "polytities".

Explanation

pH stands for "Potential Hydrogen"

Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45.

Usually, the body maintains the pH of blood close to 7.40.

Acidosis is characterized by a pH of 7.35 or lower. Alkalosis is characterized by a pH level of 7.45 or higher.

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ND11-12-2022

Explanation

Prolactin is responsible for the production of milk in the human body.

It stimulates the mammary glands to produce milk, especially after childbirth.

Prolactin works in conjunction with oxytocin, which helps release the milk.

Explanation

Alternate two series are used, one is an even number and the other is an odd number.

3 + 4 = 7

7 + 4 = 11

2 + 4 = 6

6 + 4 = 10

 ND-21-5-2023

Explanation

Atherosclerosis, sometimes called "hardening of the arteries,"

Atherosclerosis occurs when fat, cholesterol and other substances build up in the walls of arteries

These deposits are called plaques.

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ND11-12-2022

Explanation

White blood cells (leukocytes) are part of the immune system.

They play a key role in defending the body against infections, diseases, and foreign invaders.

They help maintain overall health.