1. Julia (finish) all the housework by three o’clock and we'll go for a walk. A will finish B. will have finished 2. promise I (get) in touch with you ifI need your help. A will get B. will have got 3. We are going to buy a car. By the end of next month our family (save) money for it. A will save B will have saved 4, The workers say that they (buildup) a district by the beginnins of 2000. A will build up B. will have built up 5. He probably never (be) patient. = A. will probably never be B_ will probably never have been
6. She (have lunch) by the time we arrive. A. will have B will have had 7. Ifyou think it over, you (see) that ’m right. A will see B. will have seen
Latex being collected from a tappedrubber tree A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished products, energy, or intermediate materials that are feedstock for future finished products. As feedstock, the term connotes these materials are bottleneck assets and are required to produce other products. The term raw material denotes materials in unprocessed or minimally processed states; e.g., raw latex, crude oil, cotton, coal, raw biomass, iron ore, air, logs, water, or "any product of agriculture, forestry, fishing or mineral in its natural form or which has undergone the transformation required to prepare it for international marketing in substantial volumes."
Ceramic
While pottery originated in many different points around the world, it is certain that it was brought to light mostly through the Neolithic Revolution. That is important mostly because of its ability to store and carry a surplus of supplies for the first agrarian. Although most jars and pots were fire-clay ceramics, Neolithic communities created kilns that were able to fire such materials to remove most of the water to create very stable and hard materials. Without the clay from the ground from that region, the Neolithic Revolution would have never grew as it has in the past. Using these kilns, the process of metallurgy was possible once the Bronze and Iron Ages came upon the people that lived there
Metallic
Many raw metallic materials used in industrial purposes must first be processed into a usable state. Metallic ores are first processed through a combination of crushing, roasting, magnetic separation, flotation, and leaching to make them suitable for use in a foundry. Foundries then smelt the ore into usable metal that may be alloyed with other materials to improve certain properties.[3] One metallic raw material that is commonly found across the world is iron, and when combined with nickel, this material makes up over 35% of the material in the Earth's inner and outer core.[4] The iron that was initially used as early as 4000 B.C. was called meteoric iron and was found on the surface of the earth, as this type of iron came from the meteorites that struck the earth before the humans appeared and was in very limited supply. This type of iron is unlike most of the iron in the earth, as the iron in the earth was much deeper than the humans of that time period were able to excavate. The nickel content of the meteoric iron made it not need to be heated up, and instead, it was hammered and shaped into tools and weapons.
M etallic raw materials on earth are very close to running out. The current throwaway economy hardly ever reuses the materials that are found in the earth, and unless that changes, there is a very limited amount of time before certain materials from the earth run out.
Between lead, tin, copper, iron ore, and bauxite, there are at most 70 years left unless more readily available veins of materials are found in the near future.
Vyasanakere Iron Ore Mine
Iron ore Iron ore can be found in a multitude of forms and sources. The primary forms of iron ore today are Hematite and Magnetite. While iron ore can be found throughout the world, only the deposits in the order of millions of tonnes are processed for industrial purposes.The top five exporters of Iron ore are Australia, Brazil, South Africa, Canada, and Ukraine. One of the first sources of iron ore is Bog Iron. Bog iron takes the form of pea sized nodules that are created under peat bogs at the base of mountains.
Conflicts of raw materials
Places with plentiful raw materials and little economic development often show a phenomenon, known as "Dutch disease" or the "resource curse, which occurs when the economy of a country is mainly based upon its exports because of its method of governance. An example of this is the Democratic Republic of The Congo.
Raw materials are also used by non-humans, such as birds using found objects and twigs to create nests.
Answer the questions
1.What are the raw materials?
2.Where do we use raw materials?
3.What raw materials do you know?
4.What are the raw metallic materials?
5.How man can form raw materials?
6.Where can we use iron?
7.What is copper?
8.What are 10 raw materials?
9.Are raw materials that have that have not been processed?
10.Was the Braskern the world leader in the production of biopolymers?
11.What are the finished goods?
GLOSSARY
1.Raw-food not cooked
2.Inventory-a list of all things in a place
3.Types-one member of a group of people or things that have similar features or qualities
4.Substances-a particular type of solid, liquid ,or gas
5.Commodity-a product that bought and sold
6.Ceramic-the art of making pots,bowlsby shaping pieces of clay and baking them until they are hard
7.Asset-the things that a company owns,that can be sold to pay debts
8.Combination-two or more different things that exist together or are used or put together
9.Marketplace-the part of business activity that is concerned with bying and selling goods in competition with other companies
10.Hydrocarbon-a cemical compound that consists of hydrogen and carbon,such as coal or gas
11.Impact-the effect or influence that an event , situation has on someone or something
12.Assessment-a process in which you make a judgment you ma
13.Iron-a common hard metal that is used to make steel,is magnetic,and is found in very small quantities in food and blood. It is a chemical element
14.Copper – a soft reddish –brown metal that allows electricity and heat to pass through easily ,and is used to make electrical wires,water pipes.
15.Tin-a soft silver-white metal that is often used to cover and protect iron and steel .it is a chemical element symbol Sn
16.Ore-rock or earth from which metal can be obtained
17.Bauxite-a soft substance that ALUMINIUM is obtained from
18.Kilns-a special oven for baking clay pots ,bricks
Grammar
