Correct Answer: C. bacteria

Correct Answer: A. compromising

Explanation

(i) The study of government helps us to know what is going on in our country and around the world.

(ii) It helps us to know the successes and failures of our past leaders.

(iii) It enables us to differentiate between good and bad government.

(iv) It prepares us to take part in the governance of our country.

(v) It enables us to know our rights, duties and obligations as citizens.

(vi) It puts the citizens in a position to defend their rights when violated.

(vii) It helps to inculcate the spirit of nationalism and patriotism in the citizens.

(viii) It enables people to understand the systems of government adopted in a country.

(ix) It helps us to find solutions to our political problems/challenges.

(x) It provides career opportunities for those who studied it.

(xi) it widens the citizens the citizen's political horizon.

(xii) It improves the relationship between the ruler and the ruled.

Explanation

\(T_{n} = ar^{n - 1}\) (terms of a geometric progression)

\(T_{3} = ar^{3 - 1} = ar^{2} = 360 ... (1)\)

\(T_{6} = ar^{6 - 1} = ar^{5} = 1215 ... (2)\)

Divide (2) by (1).

\(\frac{ar^{5}}{ar^{2}} = \frac{1215}{360}\)

\(r^{3} = \frac{27}{8}\)

\(\therefore r = \sqrt[3]{\frac{27}{8}} = \frac{3}{2}\)

(b) Putting r in (1), we have

\(ar^{2} = 360\)

\(a \times (\frac{3}{2})^{2} = 360 \implies \frac{9a}{4} = 360\)

\(a = \frac{360 \times 4}{9} = 160\)

(c) \(S_{n} = \frac{a(r^{n} - 1)}{r - 1}\) (sum of terms of a G.P)

\(S_{4} = \frac{160((\frac{3}{2})^{4} - 1)}{\frac{3}{2} - 1}\)

= \(\frac{160(\frac{81}{16} - 1)}{\frac{1}{2}}\)

= \(\frac{160 \times \frac{65}{16}}{\frac{1}{2}}\)

= \(1300\)

Correct Answer: D. South Africa

Explanation

(a) Agricultural extension is the process whereby the beneficial products of research are taken to the farmers and the problems of farmers taken to research institutions for solution. Agricultural Extension can also be defined as the process / system / service which assists farmers / farm people through educational procedures in improving farming methods and techniques.

(b) Functions / Roles of an extension agent / worker include:

(i) He consults and reflects rural or agricultural development projects.

(ii) plans and executes farming educational programmes.

(iii) organises and supervises farmers' groups, i.e. meetings, co-operatives and their workers.

(iv)conducts / organises training farmers

(v) Liaise with other agencies that may have influence on rural environment and the farmers.

(vi) helps improve the outlook of farmers towards their problems and difficulties.

(vii) acts as a connecting link between researchers' and the farming communities.

(viii) teaches improved farming practices to farmers.

(ix) evaluates agricultural extension programmes and projects

(x) supervises the utilization of Agric loans

Correct Answer: B. Antibodies are located in the blood plasma

Correct Answer: B. there are cold ocean currents

Correct Answer: C. lacks of good transportation network and insecurity of investment

Correct Answer: B. Cockroaches