Today’s GK Test Quiz

Sundarbans is a mangrove area in the delta formed by the confluence of the Ganges, Brahmaputra and Meghna Rivers in the Bay of Bengal. It spans from the Hooghly River in India's state of West Bengal to the Baleswar River in Bangladesh's division of Khulna.

Visakhapatnam Port is the only major port of Andhra Pradesh. It is India's third largest state-owned port by volume of cargo handled and largest on the Eastern Coast.

The Narmada, Periyar and Tapti are the only long rivers, which flow west and make estuaries. An estuary is an area where a freshwater river or stream meets the ocean. When freshwater and seawater combine, the water becomes brackish, or slightly salty.

The sex ratio (also known as Gender Ratio) refers to the number of females per thousand males.

Organised city life was the essential feature of the Indus Valley Civilisation. These cities contained well-organized wastewater drainage systems, trash collection systems, and possibly even public granaries and baths.

By mass, about 96 percent of the human body is made up of just four elements: oxygen (65 percent), carbon (18.5 percent), hydrogen (9.5 percent), and nitrogen (3.3 percent). Oxygen (O) together with hydrogen form water, which is the primary solvent found in the body and is used to regulate temperature and osmotic pressure.

Dehydration is caused by not drinking enough fluid or by losing more fluid than you take in. During dehydration, Sodium chloride is the substance that is usually lost by the body. Fluid is lost through sweat, tears, vomiting, urine or diarrhea. Dehydration is almost invariably associated with some loss of salt (sodium chloride) as well.

Cirrhosis is usually a result of liver damage from conditions such as hepatitis B or C, or chronic alcohol use. Heavy metals like copper may exacerbate liver damage. The toxicity of copper can result in brain damage, liver failure, or death if it is not treated.

Tetraethyllead (TEL) is an antiknock compound with the formula Pb(C₂H₅)₄. An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature and pressure at which auto-ignition occurs.

Pete Sampras was sometimes called 'Dennis the Menace' to the game because he was boring and too dominating. He won 14 Grand Slam single titles and had seven Wimbledon and five U.S. open wins in a storied 15-year career.

Formula One is the highest class of international auto racing for single-seater formula racing cars sanctioned by the International Automobile Federation (FIA). Fernando Alonso is a Spanish racing driver currently competing for Alpine in Formula One.

The Fundamental Duty, given in Article 51A of the Indian Constitution clearly mentions the duty of the citizen to protect the environment. As of now, there are 11 Fundamental duties.

The residuary powers of legislation are vested in Parliament. Article 248(2) of the Constitution of India says that the Parliament has exclusive power to make any law with respect to any matter not enumerated in the Union, State or Concurrent lists of the Constitution.

Federalism is a system of government in which the power is divided between a central authority and various constituent units of the country. Usually, a federation has two levels of government. One is the government for the entire country that is usually responsible for a few subjects of common national interest. The others are governments at the level of provinces or states that look after much of the day-to-day administering of their state.

Under the Seventh Schedule (Article 246) of the Indian Constitution, there are three lists – Union List, State List and Concurrent List. These Lists specify the divisions of power between the Union and States. The Union List has 100 (it originally had 97) subjects, the State List has 61 (it originally had 66) subjects and the Concurrent List has 52 (it originally had 47) numbered topics.

Opportunity cost is the value of the next best alternative forgone as a result of making a decision. When economists refer to the “opportunity cost” of a resource, they mean the value of the next-highest-valued alternative use of that resource.

The function of ball bearings in a wheel is to convert kinetic friction into rolling friction because rolling friction is much lesser than sliding friction. Ball bearings reduce friction and facilitate easy movement.

The angle of friction and angle of repose are equal to each other. The angle which the resultant of force of limiting friction F and normal reaction R makes with direction of normal reaction R is called angle of friction. Angle of repose is the steepest angle at which a sloping surface formed of loose material is stable.

Rectilinear propagation describes the tendency of electromagnetic waves (sunlight) to travel in a straight line. Eclipses occur due to the rectilinear propagation of light. Whenever an obstacle is placed in the path of light, the shadow of the obstacle is seen on the other side.

Bats produce echolocation by emitting ultrasound waves through their mouth or nose and listening to the echo. With this echo, the bat can determine the size, shape and texture of objects in its environment.