The separation of petroleum fractions depends on the differences in their

• A. melting points
• B. molar masses
• C. solubilities
• D. boiling points

An arc of a circle of radius 14cm subtends angle 300° at the centre. Find the perimeter of the sector formed by the arc (take π = 22/7)

• A. 14.67cm
• B. 73.33 cm
• C. 101.33cm
• D. 513.33cm

Jos has a heavier rainfall than the other towns on the same latitude in Nigeria because it

• A. has lower temperatures
• B. is located on the windward side of a pleteau
• C. is located near the coast
• D. is located on the path od descending winds

Grading of farm produce is important because it

• A. maintains produce quality
• B. prolongs storability
• C. facilitates pricing
• D. facilitates transportation

I wish I could just melt away before his eyes

• A. Noun phrase
• B. Noun clause
• C. Adverbial clause
• D. Adjectival clause

The two-chambers of elected national representatives in Nigeria are called

• A. the National Assembly
• B. House of Assembly
• C. the Senate
• D. the parliament

Radium ............ Maria Sklodowska Curie.

• A. discovered
• B. is discovering
• C. has discovered
• D. was discovered

As a firm expands , it enjoys some advantages called

• A. variable proportion scale
• B. diminishing marginal returns
• C. internal economies of scales
• D. decreasing returns to scale

Which of the following will have the least effect on the rate of change of the numbers in a population?

• A. food supply
• B. mutation
• C. predation
• D. disease

Choose the option that best fills the gap. They ------------------- our donation with thanks

• A. recieved
• B. receipt
• C. received
• D. recceived