Kertas Soalan Percubaan Kedah SPM 2025 Sains Kertas 1 – 40 Soalan Berjawapan

What is the first step to be taken if concentrated hydrochloric acid spills on the laboratory floor?

A Inform the teacher B Call the Fire Department C Ask friends to go out of the laboratory D Sprinkle sand onto the spillage area

Why are the skin and lips of a choking victim bluish and blackish?

A The victim's airway is blocked by a foreign object B The victim inhales more carbon dioxide gas C Less oxygen in the blood D The victim has difficulty in breathing

Diagram 1 shows a type of thermometer. What is the type of the thermometer?

A Clinical thermometer B Rectal thermometer C Laboratory thermometer D Infrared thermometer

Diagram 2 shows the blood pressure reading of a man. What disease might be suffered by the man?

A Anaemia B Diabetes mellitus C High blood pressure D Low blood pressure

Which of the following is a socioscientific issue in the energy sector?

A Decomposition of solid waste B Forest burning C Depletion of fossil fuels D Release of motor vehicle fumes

Study the following statement. > About 268 million tons of paper are produced per year. > Paper is the main contributor to solid waste. What can be done to overcome the issue?

A Using paper as fuel B Using paper only when needed C Planting more trees to produce paper D Keeping all unused paper in the store

Study the following statement. > Forests are the 'lungs of the Earth' Which of the following affects the role of forests as stated above?

A Use of fossil fuel resources for motor vehicles B Water pollution due to chemical dumping C Excessive use of chemical fertilisers in agriculture D Widespread forest exploration

What is the importance of cell division to living organisms?

A Produce more antibodies B Help absorb nutrients in the intestine C Help tissue growth and repair D Produce energy in the growth process

Diagram 3 shows the inheritance scheme diagram of a cross between two pea plants. What are the genotypes of the offspring of the cross?

A Tt, tt, tt and tt B Tt, Tt, tt and tt C Tt, Tt, Tt and tt D Tt, Tt, Tt and Tt

Diagram 4 shows the karyotype of an individual. Which of the following is a characteristic of the individual?

A Sterile B Small testis C Physical and mental retardation D No development of secondary sexual characteristics

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