Oceans make up 97.3 per cent of the total water on Earth. The ice caps have 2 per cent of total water. Groundwater accounts for 0.68 per cent of total water. Rivers account for 0.0001 per cent of the total water.

The correct answer is SIMA. It is also known as the 'mantle' and is the second layer of the Earth's three concentric layers, the other two being SIAL (crust) and NIFE (core). The major constituent elements of SIMA (second layer) are magnesium and silicon.

Jharkhand Chief Minister Hemant Soren has launched a web portal named 'Hamar Apan Budget' and a mobile application prepared by the state finance department from the Chief Minister's residential office in Ranchi.

1. Hematite is an ore of iron. It is commonly found in stones and soil. The largest quantity of iron in the earth is found in the form of hematite.

2. The chemical formula of hematite is Fe2O3. It is a heavy and relatively hard oxide mineral.

  3. Its colour ranges from black to steel or silver-grey, grey to brown or reddish.

4. Hematite is used in the production of iron. It is an important mineral that is found in many countries around the world.

1. Union Minister of State Kapil Patil recently announced the development of India's first carbon-neutral village in Bhiwandi taluka, located in Thane district (Maharashtra).

2. The initiative aims to reduce carbon emissions and promote sustainable practices for a cleaner and greener environment.

3. Carbon-neutral villages as well as 121 tribal villages are being developed as model villages.

1. A campaign named “One Student One Tree” will be launched by the Indian Council of Institutes of Technology (AICTE).

2. This campaign was launched in 2023 and aims to plant 1 crore trees in all technical institutions across India.

3. Under the campaign, every student has been instructed to plant at least one tree.

1. According to Dalton's atomic theory, atoms combine in small whole-number proportions to form compounds.