Предмет: История, автор: alinaulyainenko812

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1. а) 542г

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Предмет: Английский язык, автор: gfyhejnjk23
No one will ever see a paradise parrot fly across the sky again. Paradise parrots are extinct. Extinction is forever.
Since the settlement of Australia by Europeans in 1788, thirty species of mammals and birds and about 100 species of plants have become extinct. A further 57 species of mammals, birds, reptiles, frogs and fish, many hundreds of plants are considered endangered and could become extinct within ten to twenty years.
The main cause of extinction is the destruction of habitats. A habitat contains all that a living thing needs to survive: space, light, water, food and shelter. Habitat destruction may occur when vegetation is cleared for agriculture, forestry, cities, mines or roads. It can also occur when swamps are drained or rivers are damped to store water. About 50 species of introduced animals live in the wild in Australia. These animals prey on native animals or compete with them for food and shelter.
Today we have a far greater understanding of the threats our wildlife faces than did the early settles. Yet still we have created added treats such as urban and industrial development, pollution, and pet and fur trade. Parrots, for example, are illegally transported overseas. Often the parrots cannot adapt to the new environment and die.
People are the only animals with the power to save endangered species. But, why save species? Without a variety of species, the earth may not be inhabitable by humankind. Plants and animals help to maintain the chemical balance of the atmosphere. Forests help to regulate water supplies. Plants and animals help to make soil. They provide food and control pests and diseases. They also provide a constant source of wonder and enjoyment.

2. Answer the following questions:
a). What does a living thing need to survive?
b). What is a main cause of extinction?
c). What can affect the lifespan of animals and plants?
d). Can extinction be reserved?
e). What kinds of threats does our wildlife face?
f). If people don’t protect animals, who will?
g). What do animals and plants provide?
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