1. Impact of changing climates-Endangered species
By: Sarah Saeed
Class : 9B

2. 5 Interesting facts about tigers
Tigers are the largest members of the cat family and are renowned for their power and strength.
The tiger is capable of killing animals over twice its size; it is one of nature’s most feared predators.
Unlike other cats, tigers are good swimmers and often cool off in lakes and streams during the heat of the day.
The roar of a Bengal tiger can carry for over 2km at night.
Tigers live alone and aggressively scent-mark large territories (up to 100sq km in size) to keep their rivals away.

3. Where do tiger live? Habitats:
Tropical rainforests, evergreen forests, temperate forests, mangrove swamps, grasslands and savannas

4. Population of Tigers over time

5. Tigers Environment

6. The tigers position in the ecosystem
Tigers are predators in the position in the ecosystem and it is important because they can keep increasing the health of others animals and species .

8. what is biodiversity? Biodiversity is the variety of life.
It can be studied on many levels.
At the highest level, you can look at all the different species on the entire Earth.
On a much smaller scale, you can study biodiversity within a pond ecosystem or a neighborhood park.

9. Why is biodiversity so important?
Ecosystems and their species perform important biological services, for example, green plants remove carbon dioxide and release oxygen into the atmosphere, which helps keep the environment healthy and fit for human life.
Although we still have much to learn about the often complex function of ecosystems, and about which species perform critical roles, we know that if an ecosystem is altered in any way, it might not be able to perform some of its important services.
Economic arguments also provide compelling reasons for conserving species.
Different species of plants, animals, fungi and micro-organisms provide us with food, medicines, fuel, building materials, fibre for clothing and industrial products.  

10. What has been done to stop tigers from extinction ?
Conservationists believe that a key to saving the world's wild tigers from extinction is to put an end to poaching of tigers.
To achieve that more police need to be trained to catch the hunters and take them to court. In addition the selling and trading of products made from endangered species on the black market should be better controlled.
In China, there are establishments known as tiger farms. There, tourists are allowed to ride in protected cars and observe tigers.
The animals live in cages like cows on a ranch, and are fed by human caretakers. Each year, dozens of the captive tigers die of natural causes. Some people believe that these tigers' parts should be sold for use in Chinese medicine.
Supporters of tiger-part farming say that this could help ward off poachers. They think that there are plenty of dead farmed tigers. If their body parts could be sold to medicine more easily the tigers' value would drop on the black market and poachers would not make as much money from selling wild tiger parts.
Most conservationists, however, do not want to test the idea. They don't believe farming will solve the problem. It costs as little as $20 for someone to catch a tiger using a simple trap but it costs thousands of dollars for a farm to raise one tiger from youth until adulthood. Therefore it would stay profitable for poachers to continue to trap wild tigers.

11. What is a seed bank and why is it important?
A seed bank (also seed bank or seeds bank) stores seeds as a source for planting in case seed reserves elsewhere are destroyed.
It is a type of gene bank.
The seeds stored may be food crops, or those of rare species to protect biodiversity.
The reasons for storing seeds may be varied.