Habitats | Science presentation for Grade 7th by M.Hassaan Anjum
- 1. Group leader Muhammad Hassaan Anjum Team Parishey Batool Muhammed Kayan Ali Sana Kashif Habitats
- 2. What is a Habitat? • A place where an organism makes its home. • Its main components are • Shelter • water, • Food • Space. • It is said to be suitable when It meets all the environment conditions an organism needs to survive.
- 3. Types of Habitats 1. Grassland Habitat 2.Polar Habitat 3.Desert Habitat 4.Mountain Habitat 5.Temperate forest Habitat 6.Freshwater Habitat 7.Ocean Habitat 8.Rainforest Habitat
- 4. Grassland habitat Grassland habitats are places that receive more rain than deserts but less precipitation than forests. Every continent except Antarctica has grasslands, but they have different names in different places: • In Africa, they’re called savannas • pampas in South America • steppes in in Europe and Asia • Prairies / grasslands in North America; rangelands in Australia.
- 5. Grassland habitat • One-fourth of the planet is covered in Grasslands. Grasslands are usually found in the dry interior of continents, between the mountains and deserts. • Many grasslands were formed tens of thousands of years ago after the last ice age, when the Earth began to warm up and the climate became drier.
- 7. The Two Types of Polar Regions On the Earth The Artic & The Antarctic Both are different and host homes to different kinds of animals The prime dissimilarity between the Arctic and Antarctic is geographical The northern part of the polar region is called the Arctic. The Southern part of the polar region is called Antarctic.
- 8. The Antarctic • Antarctica, the southernmost continent and site of the South Pole. • Antarctica hosts many animals like: Seals and Penguins Important facts in Antarctica, taking anything like rocks, feathers, bones, eggs and any kind of biological material including traces of soil is banned.
- 9. The Artic The Arctic is a polar region located at the northernmost share of the Earth. The Arctic resides of the Arctic Ocean, head-to-head seas, and parts of Alaska. The Artic hosts Homes for different animals like polar bears and artic Mooses.
- 10. Human activities from pollution to overpopulation are driving up the earth's temperature and primarily changing the world around us. The main cause is a phenomenon known as the greenhouse effect, gases in the atmosphere, such as water vapor and carbon dioxide, let the sun's light in, but keep some of the heat from escaping. Like the glass walls of the greenhouse, the more greenhouse gases in the atmosphere, the more heat gets trapped, strengthening the greenhouse effect and increasing the earth's temperature. Human activities, like the burning of fossil fuels have increased the amount of co2 in the atmosphere by more than a third since the Industrial Revolution, the rapid increase in greenhouse gases in the atmosphere has warmed the planet at an alarming rate. Climate change has consequences for our oceans, our weather, our food sources, and our health. Ice sheets, such as Greenland and Antarctica are melting the extra water that was once held in glaciers which causes sea levels to rise in spills out of the oceans.
- 11. Desert Habitats • Many deserts were formed 8,000 to 10,000 years ago. • Some are superhot in the day. • The highest temperature ever recorded on Earth was 56.6°C in California and Nevada's Death Valley in 1913. • Even though many deserts can reach temperatures of well over 37.8°C during the day in summer, they can get cold at night. • Why? In most places, clouds and water vapor hold in heat, sort of like a blanket. But deserts don’t have enough clouds and water vapor to do this.
- 12. Informataion About Deserts Deserts don't have much water, animals that live in the desert are able to conserve water and keep their body temperature at the right level. The Sahara Desert is the hottest in the world. Desert is a place that gets 10 inches or less rain in a year. The Sahara Desert can reach about 122 degrees Fahrenheit. These places are deserts, because they're very dry, extreme temperatures, combined with little rainfall or lack of water makes desert life difficult for humans, animals and plants.
- 13. Animals of the Deserts There are a lot of animals living in deserts. Desert animals include Coyotes and Bobcats, spiders such as the Black Widow, scorpion's, rattlesnakes, lizards, and many kinds of birds all especially adapted to the desert biome.
- 14. Mountain Habitat It can be a long climb to the top of a mountain, but once you’re there, you can see for miles. It’s like you’re standing on top of the world! Mountains are cold and rocky. Living in the mountains can be very hard on higher altitudes. Air is thinner which makes breathing harder living in these cold and rocky places.
- 15. Animals Living In Mountain Habitats Red panda. Wolf. Alpine ibex Linux Elk llama.
- 16. Temperate Forest In regions of the world where it's not extremely hot or cold (called temperate regions), the forests are full of trees. But when the days start getting shorter in the fall, the leaves become dry, change color, and eventually drop off the trees. Oaks, elms, ash, and beeches are a few of the trees that can grow in temperate forests. Some animals that live here are Squirrels, chipmunks, bobcats, grizzly bears, timber wolves, migratory birds, monarch butterflies.
- 17. Freshwater Habitat • Rivers, creeks, lakes, ponds, and streams, swamps are all freshwater habitats. • Freshwater accounts for only three percent of the world’s water. (The rest is saltwater.) • But despite that tiny amount, freshwater habitats are homes for more than 100,000 species of plants and animals. • Fish living in freshwater habitats have plenty of company. • Snails, worms, turtles, frogs, marsh birds, mollusks, alligators, beavers, otters, snakes, and many types of insects live there too. Some unusual animals, like the river dolphin and the diving bell spider, are freshwater creatures. • The largest freshwater habitat in the world is the Everglades, a 1.5 million acre wetlands in southern Florida.
- 18. Ocean Habitat Oceans are areas of salty water on the Earth’s surface. Even though Earth has one continuous body of saltwater, scientists and geographers divide it into five different sections. From biggest to smallest, they are the Pacific, the Atlantic, the Indian, the Southern, and the Arctic Oceans. Oceans are deep as well as wide. On average an ocean is a little over two miles deep. But in the Pacific Ocean, the water in the Mariana Trench is almost seven miles deep. That’s the deepest part of the ocean. Scientists estimate that about one million species of animals live in the ocean. The largest animal ever to live on Earth is an ocean mammal called the blue whale. It’s as long as two school buses! Dolphins, porpoises, Great White Sharks, and sea lions are also ocean mammals.
- 19. Rainforest Habitat Rainforests are lush, warm, wet habitats. There are rainforests in Africa, Asia, Australia, and Central and South America. The biggest rainforest is the Amazon rainforest. Vampire bats and anacondas live in the rainforests of South America. Bengal tigers and orangutans live in Asia’s rainforests, and chimpanzees live in the rainforests of Africa. Dragonflies, tree frogs, and at least hundreds of species of ants also live here. Many of the animals in the rainforest haven’t even been discovered yet!
- 20. Habitat Destruction • Habitat destruction is the process by which a natural habitat becomes incapable of supporting its native species. • Activities such as: • harvesting natural resources • Industrial production • urbanization are human contributions to habitat destruction.
- 21. Endangered animals due to habitat loss • Amur Leopards, Black Rhinos, bluefin tuna, Orangutans, tigers, elephants, rhinos, and many other species are increasingly isolated, and their sources of food and shelter are in decline. • Human-wildlife conflict also increases because without sufficient natural habitat these species encounter humans and are often killed or captured. • There are many endangered animals that are at risk of extinction.
- 22. Habitat conservation Habitat loss is one of the biggest causes of extinctions. Do your best to preserve wildlife habitats. Campaign against deforestation. Habitat conservation is a management practice that seeks to conserve, protect and restore habitats and prevent s pecies extinction.