Explanation

HCl creates an acidic environment (pH 1.5 to 3.5) that activates the enzyme pepsin from its inactive form, pepsinogen.

Pepsin then breaks down proteins into smaller peptides, facilitating digestion.

Explanation

Biology

Life and living organisms, including their structure, function, growth, evolution, and interaction with their environment.

Geology
The Earth, its materials (rocks, minerals), structure, and the processes that shape it (earthquakes, volcanoes, plate tectonics).

Chemistry

Matter, its properties, how it interacts, combines, and changes (chemical reactions, molecular bonds, atomic structure).

Physics:

The fundamental forces and principles of the universe, such as energy, motion, force, and the nature of matter.

Explanation

African Union (AU) launched: 9 July 2002

 African Union (AU) members: 55 member states

African Union (AU) secretariat:  Addis Ababa, Ethiopia

Explanation

Let's solve for x:

6 + 5x = 30 - x

Add x to both sides:

6 + 6x = 30

Subtract 6 from both sides:

6x = 24

Divide both sides by 6:

x = 24/6

x = 4

So, the correct answer is 4.

Explanation

The planet that revolves the slowest around the Sun is Neptune.

It takes Neptune approximately 165 Earth years to complete one orbit around the Sun.

This slow movement is due to Neptune's large distance from the Sun, which is nearly 4.5 billion kilometers.

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

The Federal Bureau of Investigation is the domestic intelligence and security service of the United States and its principal federal law enforcement agency.

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RY18012023

Explanation

• A cataract is a clouding of the lens in the eye that affects vision.
• It is a common age-related condition that can cause blurry vision, double vision, and sensitivity to light.
• Cataracts can be treated with surgery to remove the cloudy lens and replace it with an artificial lens.

Explanation

The United Nations has announced that it has recognized a new record-high temperature of 18.3°C or 64.9°F set on the Antarctic continent on February 06, 2020.

The previous 17.5°C or 63.5°F record that was also set at the same location in March 2015.

Explanation

• The elevation of the Kirthar Mountains is 2,260 meters (7,410 feet).
• The highest peak in the Kirthar Range is Zardak Peak.
• It stands at 7,430 feet (2,260 meters).
• The Kirthar Range is situated along the border of Balochistan and Sindh provinces.
• The hill station of Gorakh, located in the Kirthar Mountains, is situated off Dadu in Sindh.

Explanation

The Blue Mosque, also known as the Mosque of Sultan Ahmed.

It is one of the most famous landmarks in Istanbul, Turkey.

It was built in the early 17th century during the Ottoman Empire.

It is known for its stunning blue tiles and six minarets.

The mosque was commissioned by Sultan Ahmed I.

It took seven years to complete (1609-1616).