8. SOCIAL SCIENCE Code No. 087 Class-IX Summative Assessment- II March - 2011 Design of Question paper TIME : 3 Hrs 1. WEIGHTAGE TO FORM OF QUESTIONS Form of Questions 1. 2. 3. 4. M.C.Qs. Short Answer (S.A.) Long Answer (L.A.) Map Question Total 2. Marks of Each Question 1 3 4 3 Number of Question 16 11 7 1 35 Total Marks 16 33 28 03 80 MM : 80 UNIT-WISE DIVISION OF QUESTIONS Unit No. (Subject) Marks No. of No. of No. of Map Total 1 mark 3 marks 4 marks Question Questions Questions Questions
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central form‚ represents the forests of this Earth in all their variety and diversity: ranging from boreal coniferous forests to deciduous forests in temperate zones and from the dry savannah forests of the subtropics to the impenetrable jungle of tropical rain forests. 2. The tree trunk supports the rest of the logo – emphasizing that trees are the distinguishing feature of the forest ecosystem and are the basis for many of the pivotal functions that forests fulfill. Indeed forests and their services
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all threats to wildlife‚ whether they’re rich tropical forests‚ mangroves‚ swamps‚ coral reefs‚ or your own local grassland or woods. Most wild plants and animals are so closely adapted to their own particular habitat that they become rare or endangered if it is damaged or removed. Globally‚ the most worrying losses of habitat are the tropical rain forests‚ because these contain‚ by far‚ the largest number of species. Although large areas of tropical rain forests still survive‚ they are still being
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including fishing‚ hunting‚ and hiking. North American deciduous forests are much less diverse in the number of tree and animal species in comparison to the biodiversity which is found within a tropical rain forest. Diversity may only range between 8-15 different tree species per hectare. Unlike tropical forests‚ where individuals of a particular species are thinly scattered‚ there are usually many individuals of the primary tree species in a given area in eastern deciduous forests. This biome can
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planet. One of the primary causes of global environment change is tropical deforestation. According to the World Car-free Network‚ an international network that coordinates the actions of car-free advocates from around the world‚ cars and trucks account for about fourteen percent of global carbon emissions‚ while most analysts attribute upwards of fifteen percent to deforestation; this means that deforestation in tropical rainforests add more carbon dioxide to the atmosphere than the sum of cars and
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THINK GREEN‚LIVE GREEN We are now confronted with serios enviromental problems.The best way to fight them is by knowing what causes them and to figure out the best comprimise solution for the earth as well as for the humans. population growth The major cause of most environmental problems is the rapidly growing human population‚ now at 6 billion (2000 estimate) people worldwide. A quarter of a million babies are born each day-90 million each year. In another 50 years‚ the population will grow
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Disappearing Diversity Politics‚ Population‚ & Practices The Tropical Andes hotspot is located on the western coast of South America‚ from western Venezuela to Northern Chile and Argentina‚ and includes portions of Columbia‚ Ecuador‚ Peru and Bolivia. The focus country will here will be Peru‚ a developing country in Latin America. This country is special because it became the latest developing country to enact a domestic climate change initiative with a goal of lowering carbon emissions in its
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can find a lot of things accessories‚ books‚ movies and even clothes. Trees shade the roads‚ the smell of fresh air filling the place. I’d go out strolling by myself and lose sense of time. In Indonesia bazaars and food trucks are everywhere. The tropical rain forests there are just breathtaking .The sight of nature and stalls reminded me of Thailand. In spite of their similarities‚ Thailand and Indonesia are different in some points. Indonesia is an Islamic country. The number of big mosques there
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Now‚ as the process of tropical deforestation progresses‚ the population of these amazing Macaw Parrots is decreasing because they are greatly dependent upon these very forests to provide them with food and nesting sites. For the last 100 years‚ over half the world’s tropical forests have been destroyed. And it is estimated that worldwide‚ 26 hectares of forest are lost every minute - that’s an area equivalent to 37 football pitches. Macaw Parrots nest high up in dead trees into which they gnaw
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tells the age of the tree. The climate can also determine how fast a tree grows. For instance‚ in cool climates‚ cambium only grows in the spring and summer. But there are some cases where you cannot determine the age of trees‚ like the trees in a tropical rain forest. The cambium grows all year round. Yet these trees do not have rings. Consequently without the cambium rings‚ it is difficult to tell the age of these species trees. Since trees have an s As told in the Holy Bible‚ “And the Lord
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