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2261
The main raw materials required for photosynthesis are
  • A. oxygen and water
  • B. oxygen and carbon dioxide.
  • C. oxygen and chlorophyll
  • D. carbon dioxide and water
View Answer & Discuss (1) WAEC 2012
2262
What is the benefit of thunder and lightning to farmers?
  • A. Addition of nitrates to the soil
  • B. Aeration of the soil
  • C. Removal of harmful bacteria from the soil
  • D. Addition of rain water to the soil
View Answer & Discuss (1) WAEC 2012
2263
Which of the following substances must be present in the soil for growth of a healthy green plant?
  • A. Amino acids
  • B. Carbon
  • C. Glucose salts
  • D. Magnesium ions
View Answer & Discuss WAEC 2012
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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2264
The purpose of proteins in the diet of a mammal is to
  • A. promote growth and repair cells
  • B. break down molecules
  • C. regulate the flow of chyme
  • D. serve as co-factors or enzymes
View Answer & Discuss (1) WAEC 2012
2265
Excess carbohydrates can be stored in the muscles in the form
  • A. cellulose
  • B. glycogen
  • C. chitin
  • D. lipids
View Answer & Discuss WAEC 2012
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts