WHATSAP/SMS 09061831432 OR 08127522942 
NECO 2019 HUMAN AND REGIONAL GEOGRAPHY VERIFIED QUESTIONS AND ANSWER
NECO 2019 HUMAN AND REGIONAL GEOGRAPHY ANSWERS
=====================
(Number 1)
(1ai)
Optimum population:-Optimum Population is the number of people that can be supported by the available resources in an area,so as to achieve the highest possible standard of living.
.
(ii)Over population: over population is defined as a situation whereby the population is considered too large for the available resources, for people to enjoy the highest possible standard of living. In other words, over population refers to a situation where the population exceeds the available resources.
.
(iii)Under population:- This is the type of population that is less than the available resources of a country. It then means that ,the size of population is so small that when combined with the available resources of a country and given the level of existing technology, it will secure minimum return per head
.
(iv)Migration is defined as the movement of people from one geographical area to another,involving permanent or temporary residence or settlement. In migration ,the region where people are leaving is called “the source region” while the region where people are entering is called “the receiving or destination region”.
.
(1b)
[ADVANTAGES]
*(Pick two)*
(i)Over population provide large labour force
(ii)over population is the source of large market
(iii)Over population provide quick information dissemination
.
[DISADVANTAGE]
*(Pick two)*
(i)over population lead to increase in crime wave
(ii)over population lead to inadequate health services
(iii)over population leads to unemployment and underemployment
=====================
(2a)
(i) Limited Area of Operation: It can be used only in a limited area which is served by deep canals and rivers.
(ii) Seasonal Character: Rivers and canals cannot be operated
for transportation throughout the year as water may freeze during winter or water level may go very much down during summer.
(iii) Unreliable: The inland water transport by rivers is unreliable. Sometimes the river changes its course which causes dislocation in the normal route of the trade.
(iv) Unsuitable for Small Business: Inland water transport by rivers and canals is not suitable for small traders, as it takes normally a longer time to carry goods from one place to another through this form of transport.
(2b)
(i) Dredging of rivers
(ii) construction of cannals
=====================
*NUMBER 4*
*4i.* *Location:* This basin is found in Cross River, Akwa Ibom and parts of Abia states.
*4ii.* *Resources:* Important resources include crops like yams, cassava, rice, oil palm, rubber, timber, fish, limestone and petroleum.
*4iii.* *Economic activities:* The main economic activities therefore include:-
– Farming which leads to production of food and cash crops like rubber, oil palm, etc
– Fishing due to presence of rivers and ocean.
– Lumbering due to presence of economic trees (timber).
– Mining due to presence of limestone and petroleum
*4iv* *Problems of development*
– Transport is very poor owing to presence of many rivers and swamps.
– Soil erosion due to heavy rainfall.
– Water and land pollution due to mining of petroleum.
– Problems of farming and fishing created by oil spillage.
=====================
5a. CHECK THE PICTURE ABOVE……
.
(5b)
(i)groundnut – kano
(ii) palm produce – edo
(iii)cocoa – Lagos
.
(5c)
(i)lack of effective communication network
(ii)lack of tenure system
(iii) poor road
(iv)lack of modern implement
(v)lack of capital
=====================
(Number 6)
(6a)
*[Pick four]*
(i)To promote economic corporation among member-states
(ii)To promote trade among member-states
(iii)To promote free movement of people within the sub-region, without visa.
(iv)To eventually establish a common currency.
(v)To contribute to a common fund to be used to compensate countries that loose economically, as result of their membership of the organization
.
(6b)
*[Pick four]*
(i)Development of common market:-The establishment of ECOWAS has led to the development of common market for goods produced within the sub-region
(ii)Development of international communication:- It has also help ensured the development of international communication among member – state eg roads and telecommunication network.
(iii)Promotion of sports:-ECOWAS has also helped to link members within the sub-region in the promotion of sports eg WAFU competitions.
.
(iv)Free movement of people:-It had also promoted the free movement of people,thereby abolishing the use of visa
(v)Education interaction:- The free movement oof people has also led to educational interaction within the subregion
(vi)Cultural integration:-It has also led to cultural integration through free movement of people
=====================
==
NECO 2019 PHYSICS OBJECTIVE AND THEORY ANSWERS
Physic-Obj!
1ECBDDADBDD
11ACBDCBCCDD
21DADAEDDBCD
31DEDEBCECBA
41ADEAAEBEEC
51ADEBABBECB
THEORY/ESSAY ANSWERS:
NECO-PHYSIC-ANSWERS
Note; You Are Advice To Answer Question One (1) And Any Other Five (5) From Section A (Part I) And Four (4) From Section B. Enjoy
=====================================
Physic-Theory-Answers
Answers-Six(6) From This Section.
(1a)
(pick 2)
(i) Solar Electric Power Generation
(ii) Solar Cooking
(iii) Solar Thermal Power Production
(iv) Solar-distillation
(1b)
Natural sattelite is a celestial body in space that orbits a larger body, such as Moon Which moves around the Earth.
Artificial satellite is a machine of human creation that is sent to the space or the orbit of the Earth for the collection of data, communication and other ends
(1c)
The applicable relationship is Ns/Np = Vs/Vp meaning the ratio of secondary voltage to primary voltage is equal to the ratio of secondary turns to primary turns
Ns = 200turns , Vs = 300V , Np = ? , Vp= 60V
Ns/Np=Vs/Vp
Np=Ns(Vp/Vs)
Np= 200 × (60/300)
Np = 200 × 0.2
Np= 40 turns
=====================================
(2a)
Force is an agent that changes or tends to change the state of rest or of uniform motion in a straight line of a body
(2b)
Contact force are forces which are in contact with the body to which they are applies while Field force are those forces whose sources do not require contact with the body to which the are applied
=====================================
(3a)
Maximum range (R) : Maximum range is defined as when the angle of the projection (?) is equal to 45° ie R = U^2sin90/g and ?=45°
R= U^2sin90/g and sin90=1
Rmax=U^2/g
(3b)
(i) Stable Equilibrium – A cone resting on its base
(ii) Unstable Equilibrium – A cone resting on its apex or vertex
=====================================
(4a)
It means that the glycerine which is in solid state will require a heat of 13°c to change to liquid state
(4b)
The S.I unit of mass is in kilogram (kg) while that of weight is in Newton (N)
=====================================
(6)
Constructive interference is formed when the wave amplitudes reinforce each other, building a wave of even greater amplitude. Destructive interference is formed when the wave amplitudes oppose each other, resulting in waves of reduced amplitude.
=====================================
(7)
CLICK HERE FOR THE IMAGE
=====================================
(8a)
Faraday’s law states that the induced e.m.f. in a conducting circuit is directly proportional to the rate of change of magnetic flux linkage, ?, with the circuit.
(8b)
(i)Induction motors
(ii)Electric generators
=====================================
(9a)
Electric field acts on charges (Q) while Gravitational field acts on masses (m)
(9b)
Emf =12v
r =0.45?
R =5.0?
I =?
I =Emf/R+r
I =12/5+0.45=12/5.45
I =2.20A
=====================================
(11)
(Pick Only 1)
-ADVANTAGE-
(i)it is used in generating heat energy required to generate electricity
(ii)it can be operated non-stop with the same nuclear capacity
(Pick Only 2)
-DISADVANTAGE-
(i)the plant set up is capital intensive
(ii)principal raw material (uranuim) is not easily available.
(iii)Careless exposure to raw material affects the cell tissues due to radiation effect.
=====================================
Answers-Four(4) From This Section.
(12a)
Centripetal force and centrifugal force
(12b)
CLICK HERE FOR THE IMAGE
(12ci)
Achimede’s principle states that when a body is totally or partially immersed in a fluid, it experience an upthrust which is equal to the weight of the fluid displaced.
(12cii)
eo = 4×10^4 kg/m^3
Mo = 0.4kg
Vo = ?
eL = 1.2×10^2 kg/m^3
Where,
eo = Density of object
Mo = mass of object
Vo = volume of object
eo = Mo/Vo
Vo = Mo/eo = 0.4/4×10^4
Vo = 0.00001m^3
Mo in the liquid = eL × Vo
= 1.2×10^2 × Vo × 3/4
= (1.2×10^2 × 0.00001×3)/4
= 0.0009kg
= 9×10^-4 kg
Reading of the spring = 9×10^-4 ×10 = 9×10^-3 N
=====================================
(13a)
Examples of Renewable energy are :
(i) solar energy
(ii) Wind energy
(13b)
Radius of the wheel = B
Radius of the axle = O
V. R= Distance moved by effort/ Distance moved by load
Effort moves through a distance is equal to the circumference of the wheel 2?B and at the same time interval the load moves through the axle 2?D
V.R=2?B/2?D =B/D
(13ci)
It breaks because ice is less dense than water and water expands when it is frozen
(13cii)
Evaporation takes place at all temperature but boiling takes place at a particular temperature (100°c)
(13d)
m1=200kg
u1 = 16.7m/s
V2 = 0.5m/s
m2 = 200kg
m1u1 + m2V2 = (m1+m2)V
200×16.7 + 200×0.5 = (200+200)V
V = 3340+100/400 = 3440/400
V=8.6m/s
=====================================
(14ai)
A wave is a disturbance which travels through a medium transferring energy from one point to another without causing any permanent displacement of the medium
(14aii)
Tabulate
– Light wave
(i) It is an electromagnetic wave
(ii) It can be polarized
– Sound wave
(i) It is a mechanical wave
(ii) It can can not be polarized
(14b)
Long sight ( hypermetropia ) can be corrected with converging lens
(14c)
F= 440Hz
L1= 18.8cm
L2= 57.8cm
(14ci)
At resonance L+c= ?/4
Where C is the end correction. Assuming the end correction C is negligible,then
L1= ?/4
4L1=
4 × 18.8 = ?
4×18.8/100=0.752m
(14cii)
First position L1=?
Second position L2 =?
Hence, L2-L1 = ?/4
V= f? or f=V/?
V = 2f(L2-L1)
V= 2×440( 0.5733 – 0.188)
V= 880(0.385)
V=338.8m/s
(14ciii)
Overtime = 5?/4
5×0.752/4
= 3.76/4
= 0.94m or 94cm
=====================================
(15a)
Electric field intensity is the measure of intensity or strength of electrical force per unit charge at any given point in the electric field. It is denoted by the letter E and its Unit is Newton per Coulomb (N/C). Where
F is force (N)
Q is Change (C)
(15bi)
A lead accumulator in charged by passing direct current (d.c) through it in the opposite direction to that which its supplies. The positive terminal of the d.c is connected to the positive terminal of the lead accumulator and the negative terminal of the d.c is connected to the negative terminal of the accumulator.
(15bii)
Electrolyte in battery os a solution of SO? and H²O and over time can be lost by slight spills and evaporation and using distilled water it is free from additional minerals that can be find in tap water and these minerals can significantly decrease in life of batteries
(15ci)
Faraday’s law of electrolysis ; that the chemical deposition due to the flow of current through an electrolyte is directly proportional to the quantity of electricity (coulombs) passed through it. i.e. mass of chemical deposition.
(15cii)
Area = 50cm² => 5*10-³ M²
I = 7A
t = 45*60(s)
T = thickness
M = z i t
m = 3.3 *10^-7 *7845*60
=>6.237 * 10-³ kg
P=m/v
8.9 * 10³kg/m³ = 6.237 * 10-³/V
V = 6.237 * 10-³/8.9 * 10³
=> 7.008*10 -> m³
Thickness = volume/area
7.008*10^-7/5*10-³
=> 1.40*10-?m
=====================================
(16ai)
Binding energy is the minimum energy or work required to separate the nucleons of an atom
(16aii)
(i)it is used in medicine as a radiotherapy
(ii)it is used in industry to study the defects in metals and welded joints
(16bi)
The intensity of x- ray can be increased in x- ray tube by increasing the voltage which results to an increase intensity of an electron
(16bii)
(i)both are electromagnetic waves
(ii) Both are high energy photography
(16ci)
W=2.25*10^-19J
?=3.0*10^-7m
fo=?
W= hfo
2.25*10^-19 = 6.6 *10^34fo
fo= 2.25*10 ^-19/6.6*10^-34
= 2.25/6.6 *10 ^-19 +34
=0.341*10^15Hz
=3.41*10^14Hz
(16cii)
Max energy liberated = E=hc/? – W
= (6.6×10^-34 × 3×10^8/3.0×10^-7) – 2.28×10^-19
(6.6×10^-19) – (2.25×10^-19)
= 4.35×10^-19 J
=====================================
COMPLETED!.
NECO 2019 HUMAN AND REGIONAL GEOGRAPHY VERIFIED ANSWER
How To Subscribe:
Daily Payment: Per Subject is #400 Mtn-card , You Pay A Day Before the Exam and get the Answer Online with a password sent to your phone
Whatsapp Daily Payment: Per subject is #500 Mtn-card, To make this payment chat us on whatsapp and send your payment details with your Mtn card for Whatsapp Daily Answer 08135500429
TO PAY:
SEND:
Your Number
Subjects
Mtn-Card To 08135500429
Categories: Neco