Correct Answer:

Explanation

Diagram of a carbon Cycle is shown below

(b) Importance of carbon cycle to crops and animals are:

(i) Carbon in the atmosphere is taken up by plants for the production of starch through photosynthesis.

(ii) Plants give out oxygen while animals give out carbon dioxide during the process of respiration thus maintaining the atmospheric level of carbon dioxide and oxygen.

(iii) The released carbon provides the major building block of all organic matter.

Correct Answer: C. 120g

Explanation

Heat lost = heat gained

1 x 400 x (100 - 0) = m x 333000

m = 0.12kg

converting to grams; 0.12 x 1000

= 120g

Correct Answer: B) sticky stigmas

Explanation

Wind pollinated flowers are flowers that rely on the wind to transfer pollen from the male reproductive organ (stamen) to the female reproductive organ (pistil). This is different from insect-pollinated flowers, which rely on insects to transfer pollen. The question is asking what characteristic wind pollinated flowers usually have. The options given are long styles, sticky stigmas, small and short stigmas, rough pollen grains, and short styles and pollen. The correct answer is option B, which states that wind pollinated flowers usually have sticky stigmas. This is because wind is not a reliable pollinator, and the pollen needs to stick to something in order to be carried to the female reproductive organ. The sticky stigma provides a surface for the pollen to stick to. It is worth noting that wind pollinated flowers often have small, inconspicuous flowers with no scent or nectar, as they do not need to attract insects for pollination. Additionally, wind pollination is less efficient than insect pollination, so wind pollinated flowers often produce large amounts of pollen to increase the chances of successful pollination. Overall, wind pollinated flowers usually have sticky stigmas to help the pollen stick during transfer and often have other adaptations to maximize the chances of successful pollination.

Correct Answer: D. misfit

Explanation

(a) (i) Name major export items from your country The main export items include:

(a) Petroleum

(b) Cocoa

(c) Rubber

(d) Tin

(e) Columbite

(f) Soya beans

(g) hides and skin

(h) Natural gas

(i) Beverages

(j) Texti

(ii) Name major Import items to your country The items include: motor vehicle, machinery, electronics, tractors, computer, textile, pasteries, drinks, food (rice) et

(iii) Name major trading partners of your Country:The trading partners include: Japan, Britain, China, USA, Canada, Germany, Italy, South Korea, Spain, Taiwan, Belgium.

(b) Benefits of trading with other countries

(a) Fosters international cooperation

(b) Provision of foreign exchange

(c) Provision of employment

(d) Generation revenue to government

(e) Generation of income to individual

(f) Encourage specialisation in production

(g) Bring about diffusion of ideas / innovation

(h) Provision of new products

(i) Improves standard of living

(j) Stimulates production of export goods

(k) Stabilizes world prices

(I) Leads to growth of industries

(c) Problems of International Trade

(1) Political instability

(2) Low level of currency

(3) Inadequate capital

(4) Inadequate foreign exchange

(5) inadequate production of goods

(6) High cost of transportation

(7) Port congestion

(8) Low demand for products

(9) High tariffs goods

(10) Strained international relations

(11) Smuggling / economic sabotage Question

Correct Answer: D. an offer

Explanation

An offer is a proposal made by one party (the offeror) to another person (the offeree) that indicates a willingness to enter into a contract.

Correct Answer: C. entrepreneur

Explanation

An entrepreneur is the one who organizes, manages,and assumes the risks of a business or enterprise. Risk taking is one of the key elements of entrepreneurship. An entrepreneur bears all the risks associated with the activities of the business.

Correct Answer: D. diction

Explanation

(b) Factors which Favour Development of Hydro-electric Power Projects in Nigeria:

(i) Abundance of rainfall.

(ii) Strong bedrock for dam sites.

(iii) High demand/market for electricity

(iv) Presence of rapids and waterfalls/steep gradient.

(v) Availability of capital.

(vi) Availability of skilled and unskilled labour.

(viii) Adequate high temperature against

freezing.

(c) Economic Benefits of the Hydro- electric Power Projects:

(i) Revenue generation.

(ii) income to workers.

(iii) Employment.

(iv) Provision of food.

(v) Generation of electricity for domestic use.

(vi) Promotion of irrigation.

(vii) Water supply for industrial use.

(viii) Water for domestic use.

(ix) Promotion of aquatic research.

(x) Stimulates industrial development.

(xi) Training of local technicians.

(xii) Development and growth of new ns.

(xiii) Tourist attraction.

(xiv) Generation Of electricity industrial use.

(xv) Flood control.

(xvi) improved inland navigation.

Correct Answer: D. The distance of one degree of latitude is constant at approximately 111km