MCQs

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Fertilizers are substances added to soil to provide essential nutrients for plant growth, making up for any deficiencies in the soil.

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Hydrocarbon compounds are typically derived from fossil fuels and consist of hydrogen and carbon atoms. Examples include fuels like gasoline, natural gas, and propane , as well as waxes like candle wax and paraffin wax.

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When fuel is burned , carbon dioxide gas (CO₂) is primarily produced. The combustion of fuel , particularly hydrocarbons, typically results in the formation of carbon dioxide and water vapor (H₂O).

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Melting of ice is a physical change , as it only involves a change in state (from solid to liquid) without a change in chemical composition. The examples of chemical changes: Burning of fuel Explosion of firework Burning of wood Cooking of food (breakfast, lunch, dinner) Bursting of crackers Burning of wax Rusting of iron Heating sulphur with iron fillings (to produce iron sulphide) Digestion of food Respiration in living things Photosynthesis in plants

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A chemical change , also known as a chemical reaction. It is a process that alters the composition of one or more substances, resulting in the formation of new substances with different properties.

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A change in physical appearance or state of a substance , such as a change in shape, size, color, or phase (solid, liquid, gas), is called a Physical Change. The are examples of Physical Changes: Melting (ice cream, wax, chocolate, ice and change from solid to liquid ) Phase changes ( boiling, freezing, condensation ) Crushing (chalk) Tearing (paper) Crumpling (aluminium foil) Stretching (rubber band) Mixing (sugar in water) Dissolving (sugar, salt in water) Moulding (clay, metals) Slicing (fruit) Forming of frost (from water vapors) Transition to a gas (change from liquid to gas) Change of durability (change in texture or strength) Changes to crystal form (change in crystal structure)

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Capital of Lubnan is Beirut Currency _ Lebanese pound

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Capital of Iran_Tehran Currency_ rial

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Located on the Taedong river Capital and largest city of North Korea

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Capital of Nigeria: Abuja  Currency: Naira

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Capital of South Korea: Seoul North Korea: Pyongyang

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The word "drama" originates from Ancient Greek.  It comes from the Greek word "δρᾶμα" (drâma), meaning "a deed, action, dramatic performance, play, dramatic event," which in turn is derived from "δράω" (dráō), meaning "to act, to take action, to achieve". 

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Capital of Lubnan is Beirut Currency _ Lebanese pound

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Capital of Iran_Tehran Currency_ rial

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Located on the Taedong river Capital and largest city of North Korea

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Capital of Nigeria: Abuja  Currency: Naira

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Capital of South Korea: Seoul North Korea: Pyongyang

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The word "drama" originates from Ancient Greek.  It comes from the Greek word "δρᾶμα" (drâma), meaning "a deed, action, dramatic performance, play, dramatic event," which in turn is derived from "δράω" (dráō), meaning "to act, to take action, to achieve". 

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Pakistan has a federal parliamentary system , where powers are shared between the federal government and provinces. The Prime Minister is the head of government , elected by the National Assembly .

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Arshad Nadeem  set a new  Olympic  record  by clinching the coveted  gold medal  in the men’s  javelin  final This ended Pakistan’s  32-year  wait for success at the Games  Throw:  92.97-m throw Winning date:  8 Aug 2024 Arshad belongs to  Mian Channu.   Nadeem’s throw was Pakistan’s  first individual  gold medal Note:  It also shattered the previous Olympic record of  90.57m , set by the Netherlands’  Andreas Thorkildsen  at the  Beijing 2008 Olympics. The throw now stands as the  sixth  longest throw ever, and the best in the world this year.  ****