Explanation

(a) What is Environmental Intervention? Definition Environmental intervention refers to the forces of nature and activities of man, that change the natural existence of the components of the ecosystem.

(b) Types of Environmental Intervention

(i) Natural Intervention: These include the following:

(a) Earthquake

(b) Vulcanicity

(c) Drought

(d) Flooding

(e) Hurricane

(f) Desert encroachment

(g) Tectonic movement

(h) Climatic changes

(i) Sea level changes

(ii) Human Intervention:

(1) Deforestation

(2) Bush burning

(3) Grazing

(4) Hunting

(5) Pollution

(6) Farming activities

(7) Mining / quarrying

(8) Fishing

(c) EFFECTS OF ENVIRONMENTAL INTERVENTION

(i) Natural Intervention Effects:

(a) New features different from those initially produced such as vulcanism creates volcanic mountains

(b) Changes in the landscape such as earthquake will result in digging trenches and gullies where it was not initially present, raising and lowering beaches

(c) Wide spread destruction

(d) Extinction of aquatic life e.g drought results in drying up the water and this wi!I lead to the extinction of water animals

(e) Displacement of man

(f) Displacement of animals

(g) Can lead to lighting Human Intervention

Effects:

(1) Soil erosion

(2) Deforestation

(3) Changes in energy balance

(4) Atmospheric and water pollution

(5) Land pollution leads to reduction in agricultural land

(6) Hunting causes depletion of animal reserve

(7) Destruction of the vegetation cover of the soil through bush burning

(8) Depletion of the vegetation cover of the soil through overgrazing exposes the soil to erosion.

Explanation

(a) \(\frac{3}{2p - \frac{1}{2}} = \frac{\frac{1}{3}}{\frac{1}{4}p + 1}\)

\(\implies 3(\frac{1}{4}p + 1) = \frac{1}{3}(2p - \frac{1}{2})\)

\(\frac{3}{4}p + 3 = \frac{2}{3}p - \frac{1}{6}\)

\(\frac{3}{4}p - \frac{2}{3}p = - 3 - \frac{1}{6}\)

\(\frac{1}{12}p = - 3\frac{1}{6}\)

\(p = \frac{-19}{6} \div \frac{1}{12}\)

\(p = \frac{-19}{6} \times 12 = -38\)

(b) \(5% \times ¢760.00 = \frac{5}{100} \times ¢760 = ¢38.00\)

So the TV set was actually sold for ¢(760 - 38) = ¢722.00

Using,

\(% profit = \frac{\text{SP - CP}}{CP} \times 100%\)

\(20% = \frac{760 - x}{x} \times 100%\)

\(20% x = (760 - x) \times 100%\)

\(x = 5(760 - x) \implies x = 3800 - 5x\)

\(6x = 3800 \implies x = ¢633.33\)

Thus, the actual profit = actual SP - CP

= ¢(722 - 633.33)

= ¢88.67

Hence, actual %age profit = \(\frac{88.67}{633.33} \times 100%\)

= 14.0006%

= 14% (2 sig. figs)

Explanation

(a) According to Peter what should be the Christian attitude in the face of persecution?: 1 Peter 4:12— 19:

(i) According to Peter, Christians should not be surprised at every fiery ordeal, which comes to them.

(ii) They should not see it as a strange happening to them.

(iii)They should rejoice as in it they share Christ's sufferings.

(iv) They should rejoice and be glad when Christ's glory is revealed.

(v) If they are reproached for Christ's name they are blessed.

(vi) The spirit of glory and God rests upon you.

(vii) They should never suffer as murderers or thieves.

(viii) Never suffer as a wrong doer or mischief-maker.

(ix) He advised that if they suffer as Christians, they should not be ashamed.

(x) Under the name of Jesus, they should glorify God.

(xi) It is time for judgment to begin from God's household.

(xii) The fate for those who do not obey God will be worse.

(xiii) Those who suffer according to God's will should do right.

(xiv) They should entrust their souls to a faithful creator.

(b) Three types of Persecution Christians encounter today:

(i) The state restricting their use of the Media such as Radio/Television.

(ii) Discrimination in job and scholarship allocation.

(iii) Prohibition of open air rallies/crusades.

(iv) Taking over or undue interference in Christian institutions.

(v) Disturbance of worship services.

(vi) Withholding of privileges e.g. acquiring of state lands.

(vii) Injustice in the courts.

Explanation

(i) C.O.D. Cash on Delivery

(ii) C.1.F Cost, Insurance and Freight

(iii) FOB. Free on Board

(iv) E and 0. E. Errors and Omissions Excepted

b (i) Calculate Trade Discount (5% of cost of goods)

Cost of goods = Le 100,000

Trade Discount Value 5/100 x 100,000

Le 5,000.00

(ii) Calculation of cash DiscountCash payable = Le 100,000 - Le 5,000 = Le 95,000 Cash Discount (5%) = 5/100 x 95,000 = Le 4,750.00

Calculation of Net amount payableCost of goods Le 100,000 Less trade discount Le5,000 Gross amount payable Le 95,000 Less cash Discount Le4.750 Net amount payable Le 90,250

Correct Answer: C. free movement

Correct Answer: C. NAFDAC

Correct Answer: C. Tropical humid

Correct Answer: B. 11

Explanation

Using the venn diagram above

μ = 30

n(W) = 15

n(M) = 13

\(n(W ∪ M)^1 = 6\)

Let x = number of students that study both woodwork and metalwork

i.e. n(W ∩ M) = x

Number of students that study only woodwork,\(n(W ∩ M^1)\) = \(15 - x\)

Number of students that study only metalwork, \(n(W^1 ∩ M)\) = \(13 - x \)

Bringing all together,

\(n(W ∩ M^1)\) +\( n(W^1 ∩ M)\) + \(n(W ∩ M)\) + \(n(W ∪ M)^1\) = \(μ\)

∴ (15 - x) + (13 - x) + x + 6 = 30

⇒ 34 - x = 30

⇒ 34 - 30 = x

∴ x = 4

\(n(W ∩ M^1)\) = \(15 - 4 = 11\)

∴ The number of students that study woodwork but not metalwork is 11.

Correct Answer: C. shutting

Explanation

The correct answer is C. shutting.

The phrase Would you mind...? is always followed by a gerund (the -ing form of a verb). It's a polite way to ask someone to do something.

• Would you mind shutting the door, please? (Correct)

• Do you mind opening the window? (Correct)

• I don't mind waiting. (Correct)

Correct Answer: A. Isaiah