Correct Answer: A) N 2O

Explanation

(b) Crops of North Central Highland Export Crops

(i) Cotton (ii) Groundnut

Food Crops

(i) Maize (ii) Millet (iii) Guinea corn (iv) Rice

(v) Yams (vi) Tomatoes (vii) Onions (viii) Beans

(c) Description of Northern Central Highlands

(i) Agricultural activities in the North Central Highlands

(1) Maize and other grain crops are cultivated

(2) Monocropping is giving way to mixed cropping

(3) In many areas crop rotation is practiced.

(4) Some agricultural products are processed locally

(5) Animal rearing is Important, e.g. cattle, goat, sheep, etc.

(6) Poultry is kept, e g. Guinea fowl, duck, turkey, etc:

(7) Nomadic herding is common

(8) Irrigation farming

(9) Fishing in some of the rivers, e.g R: Yobe, R. Hadeija, etc.

Problems Of development of the North Central Highlands

(1) Agriculture in the area is mainly subsistence

(2) High incidence of disease e g River blindness etc.

(3) Problems of pest e.g locust.

(4) Labour shortage because of rural - urban migration

(5) Urban flooding from weak/substandard dams.

(6) Over grazing and rugged terrain.

Correct Answer: D. 2x² + 3x - 14 = 0

Explanation

x² (sum of roots)x + (product of roots) = 0

Sum of roots \(2+-3\frac{1}{2} = -1\frac{1}{2}=-\frac{1}{2}\)

Product of roots \(=2 \times -3\frac{1}{2}=-7\\

x^2-\left(\frac{-3}{2}\right)x+(-7)=0\Rightarrow 2x^2 + 3x - 14 = 0\)

Correct Answer: C. flowers

Explanation

ai. Iron dissolves readily in dilute \(H_2SO_4\) liberating hydrogen and forming \(FeSO_4\) while with Aluminum there is no reaction.

ii. With aluminum there is no reaction(1)while iron dissolves in dilute \(HNO_3\) liberating hydrogen and forming \(Fe(NO_3)_2\)

bi. \(S+O_2→SO_2\)

ii. Vanadium(V) oxide/ platinized asbestos.

iii. To favour the formation of more product/\(SO_3\).

iv. The reaction is exothermic/high temperature favours the formation of more reactants/backward reaction.

v. Catalysts are easily poisoned/easily damaged by dirt.

vi. -SO2 damages buildings

-damages living things

-causes acid rain

-irritates eyes, nose and throat

-causes lung and respiratory diseases eg coughing, bronchitis, etc

ci. Reagents

-manganese(IV)oxide/MnO2

-concentrated HCI

Conditions

-heating

Concentrated HCI(1)

Bleaching powder/CaOCl2/KMnO4crystals

Room temperature/heat is not required

ii.

-for bleaching wood pulp and textiles

-for the production of plastics

-for recovering of tin from its ore/extraction of tin

-as a germicide and disinfectant/insecticide/in swimming pools

-to sterilize/purification of water supply

-for commercial manufacture of HCI

-production of dyes and drugs

-manufacture of solvents eg \(CCL_4\), \(CHCI_3\)

di1. Hydrogen-fused calcium chloride/conc.tetraoxosulphate(VI)acid

i2. Sulphur(IV)oxide-concentrated tetraoxosulphate(VI)acid/ anhydrous Calcium chloride

i3. calcium oxide/ quick lime/silica gel

ii1. copper and tin

ii2. Copper and zinc

Correct Answer: C. The Turkish threat

Correct Answer: C. subhanallah

Correct Answer: D. Inflationary gap

Explanation

Restrictive monetary policy which is also known as contractionary monetary policy is used to increase interest rate and reduce investment so as to control inflation in an economy.

Correct Answer: A. a private member's bill

Correct Answer: D) Total commitment

Explanation

This question is asking about what a would-be disciple lacks if they put their hand to the plough and look back. The phrase putting your hand to the plough refers to making a commitment to follow Jesus. In this context, looking back means going back to one's old ways or being distracted from following Jesus.

Option A suggests that the would-be disciple lacks faith, but this is not the correct answer. Faith is important for following Jesus, but the question is asking specifically about what is lacking when someone puts their hand to the plough and looks back.

Option B suggests that the would-be disciple lacks kindness, but this is also not the correct answer. While kindness is an important value in Christianity, it is not directly related to the scenario described in the question.

Option C suggests that the would-be disciple lacks repentance, but this is not the correct answer either. Repentance is important for turning away from sin and turning towards God, but it is not directly related to the scenario described in the question.

Option D correctly states that the would-be disciple lacks total commitment. When someone puts their hand to the plough and looks back, they are not fully committed to following Jesus. Total commitment is necessary for being a true disciple of Jesus.

In summary, the correct answer to this question is Option D: Total commitment. This means that a would-be disciple who puts their hand to the plough and looks back lacks total commitment to following Jesus. To learn more about this, please read the relevant sections of the recommended textbooks.