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1.c(ii) Sure! Two examples of single fertilizers are urea, which is a nitrogen-based fertilizer, and superphosphate, which is a phosphorus-based fertilizer.

1. d(i) When evaporation happens, liquid turns into vapor and takes away heat energy from the surroundings. This process cools down the environment. It's like sweating on a hot day, making you feel cooler

Question 1 solutions 1a. (I) The binomial system of nomenclature is a way of naming living organisms using two words. It's like giving them a first and last name! For example, humans are called Homo sapiens. 1.a (ii) The binomial system of nomenclature is a way of naming living organisms using two words. For example, humans are called Homo sapiens. B. maize is known as Zea mays. 1. b(i) An ionic bond is a type of chemical bond where atoms transfer electrons to form ions. It's like a friendship where one gives and the other takes 1.c(i) A single fertilizer refers to a type of fertilizer that contains only one nutrient, such as nitrogen (N), phosphorus (P), or potassium (K). It's like a specialized nutrient boost for plants 1.a (iii) Two scientists associated with the classification of living and non-living things are Carl Linnaeus and Carolus Linnaeus.

WASSCE Integrated Science 2023☑️ 1.(a) (i) What is an inorganic fertilizer? (ii) Give three examples of inorganic fertilizers that could be used in maize production. (b) State: (i) two industrial uses each of the following metals: (α) aluminium; (β) copper (b) (ii) Three reasons why gold is regarded as a metal. c) A force acts on a body of mass 15 g and causes the body to move with acceleration of 40.0 ms-2. Calculate the force acting on the body. (d) (i) Give one reason why trypanosome is considered as a parasite. (d) (ii) State two ways of controlling trypanosomiasis (2) (a) Write the IUPAC names of each of the following compounds: (i) FeS; (ii) CH3CH2COOH; (iii) H2SO3; (iv) CH3CHClCH3 (b) (i) List three organelles found in an animal cell (ii) State one function of each of the organelles listed in (b) (i). (c) State three reasons each for carrying out each of the following husbandry practices in poultry production: (i) identification; (ii) debeaking (d) (i) What are radioisotopes? (ii) Name two radioisotopes used in medicine. 3.(a) A student weighed 7.5 g of NaHCO3 in the laboratory. (i) Name the apparatus used. (ii) Calculate the number of moles of the substance weighed [Na = 23, 0 = 16, C = 12, H =1] (b) Explain how each of the following respiratory structures in humans is adapted to its function: (i) nasal chamber; (ii) diaphragm; (iii) alveoli. (c) Suggest five factors that could contribute to cannibalism in a poultry house. (d) (i) Define mechanical advantage as applied to simple machines. (ii) A load of 200N is lifted by a force of 400 N. Calculate the mechanical advantages (4) (a) Describe the processes involved when the eye of a human views an object. (b) (i) (α) What is an unsaturated hydrocarbon? (β) Give two examples of unsaturated (ii) Write down the structural formula for 2-methylpentane. https://t.me/officialwassce (c) State two benefits each of the following practices in animal production: (i) dehorning; (ii) drenching (d) (i) Explain why a girl in a classroom could see clearly the writing on the board from the back seat but not from the front seat. (ii) Suggest the appropriate remedy to the problem stated in (d) (i). 5.(a) State: (i) Four physical properties of water. (ii) The reason why water is referred to as a universal solvent. (b) (i) Name two gases which contribute to greenhouse effect. (b)(ii) State three effects of greenhouse on climate. (c) (i) What is weathering as used in soil formation? (c)(ii) Explain how hydration aids in the weathering of rocks? (d)(i) State the energy transformation involved in hydroelectric power generation (d)(ii) Explain why the hydroelectric power dam has thicker walls at the base than at the top. (6)(a) (i) What is heat? (ii) State three effects of heat on a substance. (b)(i) Classify each of the following substances as acidic, or basic or neutral: (i) sodium chloride; (ii) tomato juice; (iii) vinegar; (iv) sea water; (v) bicarbonate of sodium. (c) A man with blood group B is married to a woman with blood group B. The woman gave birth to a child with blood group AB. With the aid of genetic diagram, determine whether the man is the father of the child. (d) State four factors a farmer should consider when selecting rabbits for breeding.

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1aWhat is parasite ? Name 4 endo parasite of cattle. B. what is weathering of rock? *Explain the term grafting: *Define the term prunning *State 5 differences between epidemic and pandemic *Define work *What is lever *Mention two examples of 2nd class lever *Define mass *What are scientific process *Explain the scientific process in Kenley production *Explain the scientific process in oil palm production Explaining the process palm production Kenkey production Define work Calculate the workdone with a mass 500g, Distance 20cm, gravity 10m/s

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