Correct Answer: D. a collateral society

Correct Answer: A. 340.0ms^-1

Correct Answer: D. warehousing

Correct Answer: C. Y = C +I +(X - M)

Explanation

(a) The characteristics of the tropical grass land vegetation include:

(i) Dry season lasts for 6-7 months

(ii) Tall trees reaching 2m dominate the vegetation

(iii) Scattered trees mainly in the river valley called savanna parkland

(iv) Around the equator the trees are bigger and more common than grasses called savanna woodland

(v) Towards the desert with less rainfall there are few trees with short grasses called savanna scrub. Some of the trees here e.g acacia, baobab, etc are deciducus (i.e shod the it leaves during the dry season)

(b) The economic values of this vegetation type to the inhabitants of the region include:

(i) Livestock farming (e.g cattle rearing) is the most important occupation E.g Hausa - Fulani cattle rearers, Massai of Kenya etc. are known to be heavily involved in livestock farming.

(ii) Grain cultivation: Some elements 3f grains such as millets, sorghum and maize are widely cultivated. Groundnut and cotton can also be cultivated

(ii:) Game reserves. Most of these grasslands serve as game reserves e.g National Park of South Africa and Yankari Same Reserves are centres of attraction for tourism.

Correct Answer: A. invitation to treat

Correct Answer: B. 0.049

Explanation

(a) The force causing a shrink is the upthrust of the water.

(b) Work done = \(\frac{1}{2}ke^2\)

= \(\frac{1}{2}(2 \times 10^{11}) \times (2 \times 10^{-2})^2\) = 4.0 x 10\(^7\)

Correct Answer: A) Mrs. Ellen Johnson Sirleaf

Explanation

Option A is Mrs. Ellen Johnson Sirleaf, and she is the correct answer. She became the first female president in Africa when she was elected as the President of Liberia in 2006. Mrs. Sirleaf is also known for being a Nobel Peace Prize laureate and for her efforts towards women's rights and economic growth in Liberia.

Option B is Hon. Olubunmi Ette. She is not the correct answer because she has never been a president in any African country.

Option C is Dr. (Mrs) Ngozi Eweala. She is not the correct answer because she has never been a president in any African country. However, she is a renowned economist and the Director-General of the World Trade Organization (WTO).

Option D is Chief (Mrs) Funmilayo Kuti. She is not the correct answer because she was never a president in any African country. However, she was a prominent Nigerian women's rights activist and the mother of the famous musician Fela Kuti.

In summary, the correct answer to the question is Option A, Mrs. Ellen Johnson Sirleaf, who was the first female president in Africa and the President of Liberia from 2006 to 2018.

Correct Answer: B. N35,000