Which of the following is an advantage of mechanization?

• A. carrying out many farm operations with ease
• B. displacing many farm workers
• C. exposing soil to direct effect of sunlight and erosion
• D. polluting the environment with industrial gases and wastes

In the question below choose the most appropriate optionopposite in meaning to the word(s) underlined: Science may be a complicated area of learning, but its teaching needs to bedemystified

• A. simplfied
• B. twisted
• C. made difficult
• D. distorted

Which of the following is not an aim of improving crops?

• A. producing crops which are resistant to diseases and pests
• B. producing crops which are adapted to adverse weather conditions
• C. increasing yield by planting high yielding and vigorous varieties
• D. improving mechanical method of harvesting crops.

When water is boiling, it

• A. gets hotter
• B. increase is mass
• C. decreases in mass
• D. changes to steam

The situation in which there is persistent fall in the general price level is referred to as

• A. devaluation
• B. depreciation
• C. deflation
• D. inflation

In a population of living things, the parameters of size, height, weight and colours are examples of

• A. continuous variation
• B. non-heritable variation
• C. discontinuous variation
• D. physiological variation

Which of the following is a creditor legally bound to accept for settlement of a debt?

• A. Bank draft
• B. Bank note
• C. Money order
• D. Cheque

Calculate, correct to three significant figures, the length AB in the diagram below

• A. 36.4 cm
• B. 36.1 cm
• C. 36.2 cm
• D. 36.3 cm

I have done wrong; return, my son David, for I will no more do you harm because my life was precious in your eyes this day;...... who made this statement?

• A. Samuel
• B. Joab
• C. Abner
• D. Saul

(a) Using the trapezium rule with seven ordinates, evaluate \(\int_{0}^{3} \frac{\mathrm d x}{x^{2} + 1}\), correct to two decimal places.

(b) Using matrix method, solve \(-2x + y = 3; - x + 4y = 1\).