Fossils are remains, tracks, impressions, or traces of organisms that existed in the past. These are the remains or impression of prehistoric animals and plants that were embedded in the rocks.These remain also embedded in volcanic ash, sedimentary rocks, peat, amber, etc ., and get preserved and are an important tool for evolutionary studies.

Fossils are the remains or impression of prehistoric animals and plants that were embedded in the rocks. The study of fossils is known as palaeontology. It is a branch of science in which age, formation, and significance of fossils are being studied. The age of fossil if determined by performing a method called radiometric dating.

Fossils are the remains or traces of ancient life that have been preserved by natural processes, from spectacular skeletons to tiny sea-shells. A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants.

Solar energy is treated as the energy source of the future. Write any two solar devices working on solar energy that can be utilised in daily life. Enable Ginger Cannot connect to Ginger Check your internet connection or reload the browser Disable in this text field Rephrase Rephrase current sentence Edit in Ginger ×

Solar energy is a renewable energy and is considered as the future energy source as it do not produce any pollution and is easily available. It is the base of all other energy sources. There are many devices which are being used in our daily lives such as solar cells which are now being increasingly used in cars, houses, etc. They convert solar energy directly to electrical energy. Another device which works on solar energy is solar cooker which is used to heat the food materials. In this case, the solar energy is converted to heat energy.

Match the suitable renewable and non-renewable resources. Sources A B C Renewable Coal Wind Petroleum Non-renewable Hydrogen Natural gas Solar energy

Renewable sources: Wind, solar energy, hydrogen. A renewable resource, also known as a flow source, is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale. Non-renewable: Coal, petroleum, natural gas. A non-renewable resource (also called finite resource) is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. An example is carbon-based fossil fuels.