Explanation

During photosynthesis, plants release oxygen (O₂) as a by-product.

Carbon dioxide is absorbed, not released, during this process.

Formula: 6CO₂ + 6H₂O + sunlight → C₆H₁₂O₆ + 6O₂

Oxygen released supports breathing for humans and animals.

Explanation

James Chadwick is known for his discovery of the neutron in 1932. 

Proton: Protons were discovered by Ernest Rutherford, before neutrons.

Electron: Electrons were discovered by J.J. Thomson, much earlier than protons or neutrons.

Positron: A positron is the antiparticle of an electron, and it was discovered by Carl Anderson in 1932. 

Explanation

Hurricane Irma was a Category 5 storm, the most powerful to hit the Caribbean in 2017.

It caused massive damage to islands like Barbuda, Saint Martin, and the Virgin Islands.

Wind speeds reached up to 185 mph (295 km/h).

Hurricane Irma was followed by Hurricane Maria, another destructive storm in the same season.

Explanation

War and Peace published: in 1869.

Leo Tolstoy was: a Russian writer.

Explanation

Mood disorders affect a person’s emotional state.

In some disorders, moods alternate between high and low extremes.

This can affect daily life, relationships, and work performance.

Proper diagnosis is important for treatment and therapy.

Bipolar disorder causes extreme mood swings between mania (high) and depression (low).

Unlike unipolar depression, it involves both elevated and depressed moods.

Manic episodes may include high energy, rapid speech, and risk-taking behavior.

Treatment usually involves mood stabilizers and psychotherapy.

Explanation

Amnesia is a common term used to describe memory loss.

Loss can be temporary or permanent, but "amnesia" usually refers to temporary diversity.

Causes include head and brain injuries, certain medications, alcohol, traumatic events, or conditions such as Alzheimer's disease.

Explanation

• The Shri Katas Raj Temples is also known as Qila Katas.
• The temple is located in Choa Saidanshah, Chakwal, near the M2 Motorway.
• The temples were established by the Hindu Shahis between the mid-7th and 10th centuries.

Explanation

The Malabar Coast corresponds to modern-day Kerala.

Malabar refers to a historic region in southwest India.

It was famous for spices, especially black pepper.

The name is often mentioned in ancient trade and colonial history.

Malabar was important in Portuguese, Dutch, and British trade.

Explanation

First Nobel Prize in Economics – Key Points

Year & Recipients: 1969, awarded to Ragnar Frisch and Jan Tinbergen.

Reason: For developing and applying dynamic models to analyze economic processes.

Explanation

Nepal is officially recognized as a Hindu-majority country.

It was declared a Hindu state in its constitution until 2008.

It is the only country in the world with Hinduism as its state religion during that period.