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Nyansapɔ wisdom knot — symbol of wisdom, ingenuity, and patience

Integrated Science2017

WASSCE · 50 questions · Answers included

50 questions

The volumetric flask is used in the laboratory to

The internal diameter of a wedding ring could be measured most accurately using a

Which of the following organisms transmits the protozoa which causes trypanosomiasis in cattle?

Biological control of malaria involves

Water is referred to as universal solvent because it

The heat energy needed to convert a quantity of liquid at its boiling point to vapour is referred to as

A feeding association in which one partner benefits while the other loses is known as

Which of the following symptoms is associated with anthracnose in cassava?

Which of the following activities could control fungal diseases in a backyard garden?

The contraction of the biceps muscle in humans is likely to result in

Alpha decay involves the emission of

Hydrolysis of fats and oils in the presence of a base results in the production of

The role of oxygen in seed germination is to

The feature of coconut which adapts it for water disposal is its

Liming the soil improves its fertility by

Radioisotopes are used in

A 50 g sample of garden soil weighs 45 g after drying in an oven. Determine the percentage moisture content of the sample.

Ectopic pregnancy in humans may result in

Given that the Avogadro's constant is 6.02 x 10 23 , determine the number of atoms in 0.01 moles of a substance.

An object is placed 150 cm in front of a vertical plane mirror. The image formed is

Which of the following benefits could be derived by a farmer from the practice of mulching?

One of the functions of the human vertebral column is to

A force of 60 N was used to raise a load of 300 N. Determine the mechanical advantage of the machine.

The IUPAC name of the compound with the formula Cu(NO 3 ) 2 is

The function of the pancreatic juice in the digestive system of humans is to break down

Which of the following steps are required in the scientific approach to problem solving?

Grafting is a technique in crop production in which a

Which of the following statements about a step-down transformer is/are correct ?

Nerve impulses are carried into a nerve cell in humans by the

A 500 cm 3 of a solution contains 0.50 mol of HCl. Determine the molar concentration of the solution.

Which of the following statements explain why a boat floats in water? The boat floats because

Lack of calcium in the soil will result in

Which of the following chemical compounds gives off ammonia gas when heated with calcium hydroxide?

The rate of evaporation of a liquid could be increased by

Which of the following elements is a macro plant nutrient?

The temperature of a body is 60 °C. The body's temperature in kelvin is

Which of the following properties are associated with ionic compounds?

A vehicle moving at a velocity of 20 ms -1 decelerates to rest at 5 ms -2 . Determine the distance it moves from the point of deceleration to rest.

Duralumin is made of aluminium and

Which of the following functions is/are associated with the endoplasmic reticulum of a living cell?

An organism used in the production of alcoholic beverages is

Which of the following advantages are associated with farm yard manure? It

The primary function of the Eustachian tube in the mammalian ear is to

Saturated hydrocarbons are characterized by the presence of

Which of the following groups of characteristics in humans is classified as phenotype?

The S.I unit of potential difference is

Magnesium is classified as a metal because it

Which of the following colours is a primary colour?

Which of the following statements are reasons why farmers breed rabbits?

Which of the following plant seeds undergo hypogeal germination?