Synopsis – Grade 8 Science Chapter 1: Crop Production And Management Crop: Same kinds of plants cultivated on a large scale Types Kharif crops Rabi crops Season Sown in rainy season (June to September). grown during winter season (October to March) Examples soyabean‚ paddy‚ maize wheat‚ gram‚ pea Basic crop production practices Practices Preparation of soil Sowing Process Loosening and upturning of the soil. This process is known as tilling or ploughing. Placing
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boon and even a curse. when it becomes curse we need to take certain measures to fight against it. we need to create awareness so that all will put a hand in our thought and make it still more come alive. we need to stop all plastics and other polythene bags which pollute our environment. we need to take this issue to the government so that they can take to place where we cannot reach. cleanliness is next to godliness . before going to temple we take
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the items should be banned. Andrew Smith‚ Managing Director of B Smith Packaging‚ on the Shire Business Park in Warndon believes it is consumers and retailers whose attitudes to the humble plastic bag should change. Mr Smith‚ whose company sells polythene‚ paper and cotton bags throughout the country said he believed people should re-use their bags rather than get new ones.” Way of knowing: Reason
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traditional methods of control and still the most appropriate on cultivated ground and around other plants. Hoeing and hand weeding should be done regularly while the weeds are small and certainly before they seed. Mulching: Inorganic mulches like polythene and stone chippings are particularly effective at supperessing weeds. Bark is also quite good and looks attractive in the ornamental garden. Mulching is also one of the simplest and most benefical practies you can use in the garden. Mulch is simply
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DEFINITION: General cargo space or bale space the volume of the cargo holds that can be used to carry general cargo General Cargo ship has holds on the main deck and also has tweendecks‚ where cargo can be stacked atop or beneath them. TYPE OF CARGO INCLUDED These spaces can be filled by: * breakbulk cargo - variety of goods that must be loaded individually‚ is transported in bags‚ boxes‚ crates‚ drums‚ or barrels. This type of cargo is called “loose cargo” * unitized cargo.- uniform
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their concern for the environment that filled my heart with utter joy. A simple example is their attitude towards the use of plastic. Fauji Fertilizer Company has banned the use of plastic bags and replaced their utility with paper bags. Traditional polythene bags in common use all over Pakistan is non-biodegradable. As a result‚ it threatens to stay in the environment for a long time after its disposal. However‚ paper bags being made from tree pulp is an organic medium‚ which is both environmentally
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does reducing‚ reusing and recycling save resources and energy‚ it can also reduce pollution. Recycling old bottles‚ instead of making them from new‚ can cut pollution by up to 20% and reduce the demand for water by half. Making bags from recycled polythene rather than raw materials produces only a third of the sulphur dioxide and half of the nitrous oxide as well as only using one-eighth as much water. Where can we put it? If we don’t reduce‚ reuse and recycle our materials‚ they will have to be
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Experimental Report Aim The objective of the laboratory report was to determine the thermal expansion coefficient of copper and other materials by measuring the relative change in length of bars of the materials as a function of temperature. Introduction The average coefficient of thermal expansion α over a temperature interval ΔT is given by ΔL / L0 = ΔT Where L0 is the length at some initial temperature‚ and ΔL is the change in length corresponding to a change in temperature
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of a capacitor I. Objective : * To investigate the factor which affect the capacitance of a parallel-plate capacitor using a reed switch. II. Apparatus * Reed Switch * Signal generator * Capacitor Plates (1 pair) * Polythene spacers * Low voltage power supply * Voltmeter * Variable resistance * Light-beam galvanometer * CRO * Standard mass (eg. 100g ) * Connecting leads * Drawing board * Vernier calipers for measuring thickness of
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Case Study of river pollution Introduction River pollution has caused loss of lives and imbalances in the ecosystem. People‚ industries and natural causes contribute to the pollution of rivers. This makes the waters unsafe for both animal and human consumption. Conversely‚ what happens upstream may not be knowledge to those at the lower part of the river. In consequence‚ governments have come up with laws and regulations to curtain practices that may render the water harmless. Irrespective of
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