Shelter – Definition, Need and Types
The dictionary meaning of a shelter is – something beneath, behind, or within which a person, animal or anything is protected from adverse conditions, and where it can reproduce is called as a shelter.
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What is Ozone layer? How is it depleted and what are the control measures?
Ozone absorbs ultraviolet radiations so that much of it is never allowed to reach to the earth surface. The protective umbrella of ozone layer in the stratosphere protects the earth from harmful ultraviolet radiations. Ozone plays an important role in the biology and climatology on the earth’s environment. It filters out all the radiations that remain below 3000Å. Radiations below this wavelength are biologically harmful. Hence any depletion of ozone layer is sure to exert catastrophic impacts on life in the biosphere.
Ecosystem analysis: Understanding Complex Ecosystems
The biosphere has been composed of a number of highly complex ecosystems such as forests, grasslands, oceans, estuaries, deserts etc. These ecosystems have gone under threat over the years due to intensive human pressure of serious pollutions, habitats destructions, land, water bodies, wetlands and coastal zones reclamations and so on.
Respiration in Aquatic and Terrestrial Animals
Respiration is different in aquatic and terrestrial animals. Aquatic animals repire by means of gills and skin while terrestrial animals breathe in through lungs.
Dangerous Impact of Breaking of Mountains
Landslides are very common in rainy season. Rains caused serious conditions during previous some weeks this year in many villages of Maharashtra. Many of these villages that were located in the laps of mountains vanished within no time.
Direct causes of the loss of biodiversity
Species become endangered due to both natural and anthropogenic causes. Since man has no control over natural causes, we should consider anthropogenic causes only. Anthropological causes may be classified into two fundamental categories: Direct Causes and Indirect or underlying causes.
Now, Mid-Day- Meal to Helpless Seniors
The Government of India is planning to offer mid-day-meal to the helpless elderly persons also. Till now, school going children of up to 8th standard of schooling were provided free mid-day- meal in their schools.
Natural Ponds Drying up in Ranchi
Sometimes back Ranchi was known as the city of ponds. Every area by then had a pond and people of…
Some Benefits of Eating Cauliflowers
Cauliflower is a beautiful compact snow ball like vegetable if it is white. It remains surrounded by soft and long foliage.
Bamboo or the Green Gold to Indian Farmers
Bamboo can be said as the Green Gold to Indian Farmers as it provides vast varieties of benefits to them.
Modes of Reproduction
Two organisms- male and female are essential for sexual reproduction. Now let us study some basic methods of reproduction in single organisms.
Why Do Some Birds Migrate?
Birds that travel from one place to the other place are called as Migratory Birds.
