If the probability that an event will occur is p and the probability that it will not occur is q, which of the following is true?

• A. p - q=1
• B. q - p=0
• C. p + q=1
• D. p + q=0

What is the empirical formula of a hydrocarbon containing 0.160 moles of carbon and 0.640 moles of hydrogen

• A. CH₂
• B. CH₃
• C. CH₄
• D. C₂H₄

If m = 3, p = -3, q = 7 and r = 5/2, evaluate m(p+q+r)

• A. 19.50
• B. 19.15
• C. 18.95
• D. 18.05

The following are advantages of overpopulation except

• A. Quick information dissemination
• B. Effective planning
• C. Large labour
• D. Insufficient food

When concentrated sodium chloride solution is electrolysed using inert electrodes the products are

• A. oxygen and hydrogen
• B. hydrogen and oxygen
• C. sodium and oxygen
• D. soduim and chlorine

Highlight the difficult times in the early life of Muhammad (SAW) before his prophethood.

According to Darwin, the driving force behind evolutionary change is

• A. natural selection
• B. genetic drift
• C. mutation
• D. gene flow

A certain amount of money is needed for everyday expenditure like buying of goods, transportation and others. This is

• A. transaction demand for money
• B. precautionary demand for money
• C. derived demand for money
• D. speculative demand for money

The judicial order requiring a detained person to be brought before a judge is the writ of

• A. Habeas corpus
• B. Mandamus
• C. Prohibition
• D. Certiorari

The following are features of Northern Guinea Savanna except

• A. presence of tall trees with thick bark
• B. bare soil with very few trees
• C. presence of fire-resistant trees
• D. predominance of woody trees