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How Do Fish Survive in Icy Waters?
In cold winter months, lakes and rivers freeze over forming ice. Yet, fish and other aquatic animals manage to survive. Animals like seals, penguins, walruses and a wide variety of sea birds are all fish eaters. They live in the Arctic and Antarctic Circle, amidst the icecaps. The land is completely frozen. Yet these animals manage to live in this region. How do they do it? The icy waters of the Arctic and Antarctic Oceans support a great amount of marine life....
Fish That Live in the Desert
We all know that fish live in water. But, there is a kind of fish which lives in the desert. Difficult to believe? Well, there is a variety of fish called the lungfish, which are found in Africa. When the rivers overflow, their water spreads to the dry regions around. It forms small lakes or ponds. The fish lives in these ponds. And, when the lakes dry up, the lung fish don’t die. They bury themselves in the wet mud where they can live for months....
When will the Oceans of the Earth Overflow?
Try this out. Plug the sink and leave the water running. It will lead to a flood in the bathroom and a scolding for letting the water overflow. Since the sink could not hold an unlimited amount of water, it let the water spill out. But even the oceans are enormous bodies of water that get flooded with water from rain, melting ice, and rivers year after year. Will they start overflowing too? If so, when?...
Save rivers, lakes from worshippers
Before every Ganesh Chaturthi, people from across India, especially Maharashtra, Andhra Pradesh, West Bengal and Orissa, get busy with preparations for celebrations. But, as the momentum of activity increases, officials of the Central Pollution Control Board (CPCB) start feeling queasy in their stomachs. For, though festivals like Ganesh Puja and Durga Puja are a time for fun, it is also the time when rivers and lakes around the country are abused. Unlike in the past when the idols of gods and goddesses were made of ordinary colours and plain clay that dissolve in water easily, without causing widespread pollution, now they are made of plaster of Paris, distemper, plastic paint, dyes, metallic powders, adhesives, varnish, fluorescent powders and oil paints, which can have an adverse effect on the eyes, skin and respiratory system....
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