Explanation

• Total bones in adult human body = 206
• At birth = 270–300 bones (fuse to become 206)

The total bones of our body can be divided into:

• Axial skeleton = 80 bones
• Appendicular skeleton = 126 bones

Additional information:

• Newborn baby has 300 bones
• Longest bone = Femur
• Shortest bone = Stapes
• Bones in human skull = 22

Last verified on 30-03-2026

Explanation

• The largest endocrine gland is the Thyroid gland.
• It is located in the neck, below the larynx.
• Produces hormones like thyroxine (T4) and triiodothyronine (T3).
• Controls metabolism, growth, and energy levels.

Last verified on 02-05-2026

Explanation

• Pampas are vast natural grasslands in South America.
• They are mainly located in Argentina, Uruguay, and parts of Brazil.
• These regions are flat and highly fertile for agriculture and cattle farming.
• It is famous for livestock (especially cattle) rearing.
• It is one of the most important grassland regions in the world.

Last verified on 02-05-2026

Explanation

RF (Representative Fraction) 1:50,000 means:

1 unit on map = 50,000 units on ground

So, 1 cm on map = 50,000 cm on ground

Convert cm to meters:

100 cm = 1 meter

50,000 cm = 500 meters

Last verified on 02-05-2026

Explanation

• Pacific Ring of Fire is a major zone of volcanoes and earthquakes around the Pacific Ocean.
• It is mainly formed due to subduction zones, where one tectonic plate slides under another.
• This process creates volcanic activity and seismic earthquakes.
• It contains about 75% of the world’s active volcanoes.
• It is the most geologically active region on Earth.

Last verified on 02-05-2026

Explanation

• Shifting cultivation is also known as Milpa system in America.
• It is a farming method where land is cleared.
• It is used for a few years, then left fallow.
• Farmers grow crops like maize, beans, and squash.
• It is common in Central and South America (Mesoamerican regions).
• Soil fertility is restored naturally after shifting.

Last verified on 02-05-2026

Explanation

• Pakistan generates electricity from thermal, hydro, and other sources.
• In 2002–03, thermal power was the dominant source of electricity.
• It contributed about 68% of total electricity generation.
• Thermal power mainly comes from oil, gas, and coal plants.
• Hydropower was the second major source at that time with 30%.

Last verified on 02-05-2026

Explanation

• Western extent: 60°50′ E
• Eastern extent: 77°50′ E
• Latitude range: ~24°N to 37°N
• Time zone: PST (UTC +5)
• Hemisphere: Northern & Eastern

Last verified on 02-05-2026

Explanation

• The Sun is a star at the center of our solar system with a surface temperature of about 6000 °C (Sun’s core is even hotter, ~15 million °C).
• It provides light and heat, essential for life on Earth.
• The Sun’s energy drives weather, photosynthesis, and climate.

Last verified on 18-03-2026

Explanation

• Sun mass → 1.989 × 10³⁰ kg
• Earth mass → 5.972 × 10²⁴ kg
• Sun ≈ 330,000 Earths
• Sun contains 99.8% of solar system mass
• Earth is only 0.2% of total system mass (approx.)

Last verified on 02-05-2026