In million's test, when the reagent is added to a protein food item, a white precipitate is produced which turns

• A. blue on heating
• B. yellow on heating
• C. green on heating
• D. red on heating

The total length of the railway line is approximately

• A. 11.5km
• B. 9.5km
• C. 12.5km
• D. 10.5km

The part of the mammalian kidney that stores urine is the

• A. capsule
• B. medulla
• C. pelvis
• D. bladder

A piece of evidence that confirms that the earth is spherical is the?

• A. standard time
• B. solar system
• C. earth's orbit
• D. moon's eclipse

When a peacock displays its colourful feathers, it is

• A. ready for a fight
• B. protecting itself from predators
• C. protecting its mate from predators
• D. courting a female

(a) Five female and seven male teachers applied for 4 vacancies in a Junior High School. The teachers are equally qualified. Find the number of ways of employing the 4 teachers, if : (i) there is no restriction ; (ii) at least 2 of them are females.

(b) The table shows the positions awarded to 7 contestants by Judges X and Y in a competition.

(i) Calculate, correct to one decimal place, the Spearman's rank correlation coefficient.

(ii) Interpret your answer in b(i) above.

Under the Babangida administration, the political bureau recommended at the federal level

• A. unicameral legislature and multi-party system
• B. unicameral legislature and two -party system
• C. unicameral legislature and two- party system
• D. bicameral legislature and two -party system

Use Table 3 to answer the questions below

• A. 2456
• B. 4009
• C. 4400
• D. 3450

The largest producer of gold in West Africa is

• A. Nigeria
• B. The Gambia
• C. Sierra Leone
• D. Ghana

Which of the following countries records the highest rainfall?

• A. Liberia
• B. Algeria
• C. Mali
• D. Egypt