In early society, girls were restricted from play. They were restricted inside homes. But, now it is considered that Play is fundamental to children’s happiness and well-being, and the evidence shows that it is also influential in their health and processes of future life developments.
In early society, girls were restricted from play. They were restricted inside homes. This was something to do with our social conditions and traditions. But, girls are being given more rights today than they had earlier.
Man has been keeping animals and depending on them for his livelihood since the origin of civilization. Washermen have been depending on donkeys since long for carrying clothes.
An association of all the plants at a particular place is called a Plant Community and the association of all the animals at the same place is called an Animal Community. Both the plant and animal communities inhabit a particular place living completely merged and interacting among them. Members of a community not only interact with the members of other communities, they interact with the members of their community and with the physical environment around them, as well.
The process of recovering or reusing usable materials from discarded waste is called recycling. For example, about 15 per cent of Sulphuric acid is recycled in chemical manufacturing. In the early days, all the sulphur needed for the production of sulphuric acid was taken out of mines directly. But now, with the prevailing tendencies of recycling, sulphuric acid manufacturing industries are using sulphur from smelters, refineries, etc.
Fossil fuels- coal, petroleum and natural gas, are sources of energy and lots of useful substances. They have been and still they are the back bones of the economic developments and the basis of the modern civilization.
This word is usually applied for the non-human members of the Kingdom Animalia in animal taxonomy. However, the closer relatives of humans like mammals (having mammary glands) have been included in this term. Thus cows, bats, rats etc also are mammals.
Ecological Niche Dictionary defines the term Niche as a comfortable or suitable position in the life of a living being or a role taken by a type of organism within its community. In other words, an ecological niche is the role and position a species has in its environment, for example, how it meets its food and shelter needs, survives, and reproduces. A species’ niche includes all of its interactions with its environment’s biotic and abiotic factors.
About 1000J radiant energy comes to the earth from the sun. Out of this, only 10% of the total energy is used up by green plants in the process of Photosynthesis. Remaining 990J of energy escapes away into the atmosphere. 10J of energy is stored in the form of chemical energy in starch and sugars.
Parental traits are transferred from one generation to other generation by means of chromosomes, DNA, or Genes.
The unit of biosphere having all the components producers, consumers and decomposers and the abiotic components together with physical factors in dynamic relationships is called as ecosystem.
The Makar Sankranti, the festival of Sun Worship and the festival of harvest is usually celebrated on 14th or 15th of January every year. This year, it is going to be celebrated on the 14th January 2021.
