1. The average life of red blood cells in the human body is 120 days. This is the time it takes from the formation of red blood cells until they flow in the blood. Red blood cells are made in the bone marrow and then they are shed into the blood. While flowing in the blood, red blood cells carry oxygen from the lungs to the rest of the body and carry carbon dioxide from the rest of the body to the lungs.

Recently PM Modi has inaugurated the 'Smart' campus of Bosch India in Bengaluru city. This campus is the new headquarters of Bosch India and is a leader in creating cutting-edge goods and solutions for both India and the rest of the world.

1. The largest endocrine gland in the human body is the thyroid gland. This gland is located in the front and bottom of the neck and produces thyroxine and calcitonin hormones.

2. The thyroxine hormone helps regulate the body's metabolism, while the calcitonin hormone helps regulate calcium levels in the blood.

This institution started functioning on 1 October 1958. Since then, all American space exploration programs have been operated by NASA, including the Apollo moon missions, the Skylab space station, and later the Space Shuttle.

1. The longest coastline in India is along the state of Gujarat. Its length is approximately 1,600 kilometres. This coastline borders the Arabian Sea and includes many beautiful beaches, islands and ports.

2. Gujarat's coastline is important for India's economy and culture. It is an important centre for tourism, fishing and trade. Several important ports are also located on the coastline, such as Mundra, Kandla and Porbandar.

1. During an earthquake, the velocity of the upper part of the waves will increase along with the increase in density which will propel the object passing through it.

2. Earthquake shock When seismic waves occur in a place with soft soil sediments, their propagation increases the natural period, which produces an echo.

All of the following options are correct.

1. Lower the pressure, greater the atmospheric disturbance.

2. Air move from higher to low pressure.

1. Indian black soil is commonly known as black cotton soil or "Regur".

2. Black soil is known as black cotton soil because cotton is an important crop which is grown in this type of soil.

3..Black soil is good for the production of cotton, oilseeds, wheat, linseed, millet and tobacco. This soil is rich in calcium carbonate, potash, lime but has low phosphorus content. Black soils can hold a lot of moisture.

4. It is mostly found in the peninsular plateau of India.