True/False – GK Questions

The Bosphorus Strait connects the Black Sea to the Sea of Marmara, which then connects to the Mediterranean via the Dardanelles. It divides Istanbul into European and Asian sides. The strait is a critical maritime route and strategic chokepoint.

China is the largest producer of potatoes globally, followed by India. India produces about 50 million tonnes annually, primarily in Uttar Pradesh, West Bengal, and Punjab. Potatoes are a key Rabi crop and food security crop.

India has the largest postal network in the world with over 155,000 post offices, about 90% in rural areas. India Post provides mail, banking, and insurance services. The network plays a crucial role in financial inclusion and last-mile connectivity.

The Gutenberg discontinuity is named after seismologist Beno Gutenberg, not Johannes Gutenberg (printing press inventor). It marks the boundary between Earth's mantle and outer core at about 2,900 km depth.

The Patkai Hills form part of the India-Myanmar border in Arunachal Pradesh, Nagaland, and Manipur. They are an extension of the Eastern Himalayas and part of the Indo-Burma biodiversity hotspot. The hills are home to diverse tribal communities.

The Dead Sea shore is the lowest point on Earth's land surface at about 430 meters below sea level. Located between Jordan and Israel, its high salinity (34%) prevents most life forms. The sea is shrinking due to water diversion from the Jordan River.

India is the largest producer of tomatoes globally, contributing about 12% of world production. Major producing states are Andhra Pradesh, Karnataka, and Odisha. Tomatoes are a key vegetable crop used in cooking and processed foods.

India has the second-largest road network in the world after the USA, spanning over 6.3 million km. The network includes national highways, state highways, and rural roads. The Pradhan Mantri Gram Sadak Yojana aims to connect all villages.

The Mohorovičić discontinuity (Moho) is named after Croatian seismologist Andrija Mohorovičić, who discovered it in 1909. It marks the boundary between Earth's crust and mantle, identified by a sudden increase in seismic wave velocity.

The Shivalik Hills (Outer Himalayas) are the southernmost and youngest range of the Himalayas, formed 2-20 million years ago. They are composed of unconsolidated sediments and are prone to landslides. The Shivaliks extend from Jammu to Assam.

The Red Sea separates Africa (Egypt, Sudan, Eritrea) from Asia (Saudi Arabia, Yemen). It connects to the Mediterranean via the Suez Canal and to the Indian Ocean via the Bab el-Mandeb Strait. The sea is known for its high salinity and coral reefs.

India is the largest producer of castor oil seeds globally, contributing about 80% of world production. Major producing states are Gujarat, Rajasthan, and Andhra Pradesh. Castor oil is used in pharmaceuticals, lubricants, and biodiesel.

The Western Coastal Plain (50-80 km wide) is narrower than the Eastern Coastal Plain (100-130 km wide). The Western Plain is bordered by the steep Western Ghats, while the Eastern Plain has wider deltas formed by major rivers.

Peaty soil forms in areas of high rainfall and humidity where organic matter accumulates faster than it decomposes. Found in Kerala, Tamil Nadu, and parts of Bihar. It is acidic, dark in color, and suitable for paddy and jute cultivation.

The ionosphere is a region within the thermosphere (60-1,000 km altitude) containing ionized particles that reflect radio waves, enabling long-distance communication. It is affected by solar activity and causes auroras near the poles.

The Tropic of Cancer (23.5°N) passes through Mexico, dividing it into tropical and subtropical zones. It also passes through 15 other countries including India, Saudi Arabia, and China. The line marks the northernmost point where the Sun can be directly overhead.

Bardoli Chheerha is a local pre-monsoon wind in Assam that brings moisture from the Bay of Bengal. It occurs in April-May and helps in tea cultivation. These winds are part of the complex monsoon system affecting Northeast India.

Antarctica has no permanent human residents due to its extreme climate. Only scientists and support staff live temporarily in research stations. The Antarctic Treaty (1959) designates the continent for peaceful scientific research.

The Oldham discontinuity is not a recognized seismic discontinuity. The major discontinuities are Moho (crust-mantle), Gutenberg (mantle-core), and Lehmann (outer-inner core). Named after seismologist Richard Oldham who discovered Earth's core.

The Javadi Hills are located in Tamil Nadu, forming part of the Eastern Ghats. They are rich in mineral resources and forests. The hills are a source of several rivers and support agriculture and tribal communities.