Why Do Some Birds Migrate?
Birds that travel from one place to the other place are called as Migratory Birds.
Birds that travel from one place to the other place are called as Migratory Birds.
People who suffer from hunger remain undernourished. They don’t get enough food to eat. As such they don’t get energy, they need to live active lives. Undernourished persons remain unable to study, work or otherwise perform physical and mental activities. This condition is especially hard for women and children. Continuous hunger weakens the immune system and makes them vulnerable to diseases and infections. Mothers who suffer continuous hunger often give birth to underweight and weak babies, and they face increased risk of death.
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.
Prevention of entry into the environment: According to this principle, pollutants are checked at the point of their origin and are not allowed to enter into the environment by the application of specific devices.
What is the importance of DNA copying in reproduction?
The processes of development through years have spurred on unplanned urbanization, extensive industrialization followed by different types of pollutions, construction of a series of mega dams, and large-scale application of Agro-chemicals.
Natural habitats support a variety of living organisms, some of which endemic to one particular habitat.
The South West Monsoon is ready to go in a delayed manner. It is returning late continuously since last three years.
In India, a Hazardous Substances Management Division has been constituted as a nodal point within the Ministry of Environment and Forest. This nodal agency is responsible for Planning, over-seeing and implementing the policies and programmes on management of hazardous substances and Chemical Emergencies.
ASSESSMENT: NCERT QUESTIONS WITH ANSWERS
The reflex action is an involuntary action which goes on automatically. We don’t have any control on this type of action. Walking, on the other hand is a voluntary action which can be controlled and modified by us.
Integrated Pest Management (IPM) in India: Features, Benefits, and Sustainable Agriculture Practices The promotion of Integrated Pest Management (IPM) in…
Anything from which we can derive energy is called as a source of energy. Since all the life processes need energy, energy is most important for our survival. Our body derives energy from the food we eat. Thus, the food we eat is the source of energy for our body. But this is not the whole story. We need energy for our growth and economic development as well.











