Questions

Two poems, credited to a poet named Homer, provide a great deal of information about the life and institutions of the early Greeks. The Iliad is the story of siege and destruction of the city of Troy, on the western coast of Asia miner. The Odyssey describes the adventures and return home, from troy , of a Greek hero, Odysseus.

The kidneys are stimulated to produce renin by a decrease in the blood pressure.

The renin-angiotensin system or RAS regulates blood pressure and fluid balance in the body. When blood volume or sodium levels in the body are low, or blood potassium is high, cells in the kidney release the enzyme, renin. Renin's primary function is therefore to eventually cause an increase in blood pressure, leading to restoration of perfusion pressure in the kidneys.

Chattisgarh State government has granted permission for the installation of a Geothermal Power Plant at Tattapani area of the Balrampur district to the NTPC and it is the first geothermal power plant in India.

Junagadh

Vikram Sarabhai Space Centre is located at Thiruvananthapuram, Kerala.

• This is the lead centre of ISRO responsible for the design and development of launch vehicle technology focusing on rocket and space vehicles for India's satellite programme.

Rust forms when oxygen reacts with chemicals in rocks, and that is often the case with many other elements in general. Like a copper nail being exposed to the air will rust.