Practice MCQ Questions and answers on Basic General Knowledge-GK

The measurement of the volleyball court is 18 m x 9 m divided into two parts by a net.

Nationalism and imperialism, Militarism and entangling alliances and Mutual rivalry, hatred and distrust within the countries were the main factors responsible for World War I.

Christopher Columbus discovered the West Indies in 1492 AD. He was an Italian explorer and colonizer who completed four voyages across the Atlantic Ocean that opened the New World for conquest and permanent European colonization of the Americas.

In 1991 the USSR formally disintegrates into 15 republics. In the decades after it was established, the Russian-dominated Soviet Union grew into one of the world’s most powerful and influential states and eventually encompassed 15 republics–Russia, Ukraine, Georgia, Belorussia, Uzbekistan, Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, Moldova, Turkmenistan, Tajikistan, Latvia, Lithuania, and Estonia. In 1991, the Soviet Union was dissolved following the collapse of its communist government.

The purpose of EFTA (European Free Trade Association) was to remove all tariffs on trade of industrial goods between the member countries and to aid the creation of a single west European market to help boost world trade.

What are Red Blood Cells (RBCs)?
Red blood cells are tiny, disk-shaped cells found in your blood. They are red because they contain a special protein called hemoglobin, which gives them their color.

Why are they important?
Think of red blood cells as tiny delivery trucks. Their main job is to carry oxygen from your lungs to every single part of your body. Every cell in your body needs oxygen to work properly and produce energy. Without enough red blood cells, your body might not get enough oxygen, making you feel tired and weak.

What is 'per cubic mm'?
This is a very small unit of measurement used in laboratories. Imagine a cube that is just 1 millimeter long, 1 millimeter wide, and 1 millimeter high. That tiny space is a 'cubic millimeter'. Doctors and scientists count the number of cells in this very small volume of blood.

The Normal Count:
For a healthy adult, the normal number of red blood cells is typically around 4.5 to 5.5 million per cubic millimeter of blood. Therefore, 5 million red blood cells is a normal and healthy count and the correct answer among the given options.

Knowing this number helps doctors understand if a person's blood is healthy and carrying enough oxygen throughout their body.

The population density of Andhra Pradesh is 275/sq km.

When there is a decrease in the concentration of oxygen in the blood, the breathing rate increases. Breathing rate and breathing volume increase, the blood pressure increases, the heart rate increases, and kidney bicarbonate production ( in order to buffer the effects of blood acidosis), occur.

The duration of football match is Two 45 minute period with a reset at half time. A football match consists of two halves and each half is 45 minutes long. Between the two halves, there is an interval, which is not more than 15 minutes long. Stoppage time (also called injury time) is the time added on at the end of each half at the discretion of the referee.

Ashoka became emperor of India in 264 BC. He saw corpses, ruins and people that lost everything they had. Ashoka converted in 264 BC to Buddhism and became a peaceful and caring ruler of his people. Around 260 BC, the Maurya Empire had become the largest and wealthiest empire on Earth.