Past Questions And Answers
A change in temperature of a saturated solution disturb the equilibrium between the
- A. Dissolved solute and the solvent
- B. Solvent and undissolved solute
- C. Dissolved solute and undissolved solute
- D. Dissolved solute and the solution
Which of the following factors would influence a company's decision to change its production process?
- A. Demographic factor
- B. Social factor
- C. Political factor
- D. Technological factor
Which of the following is not a type of computer network?
- A. VPN
- B. CAN
- C. WLAN
- D. DAN
The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;
| Organism | Number in the habitat | |
| habitat W | habitat Y | |
| Plankton | 126 | 0 |
| Antelope | 0 | 51 |
| Water flea | 10 | 0 |
| Tilapia | 23 | 0 |
| Lion | 0 | 6 |
| Frog | 6 | 0 |
| Grass | 0 | 250 |
The number of lions and antelops in habitat Y shows that the lion
- A. is the prey while the antelope is the predator
- B. is the predator while the antelope is the prey
- C. and the antelope are preys to each other
- D. and the antelopes are predators
In the absence of a sales day book or sales account the credit for sales can be computed from
- A. creditors control account
- B. debtors control account
- C. opening figures of the balance sheet
- D. closing figures of the balance sheet
The table below shows the workers engaged by an agricultural firm over a period of time. Study it and answer the questions that follow;
| Number of workers | Total product | Marginal product | Average product |
| 0 | 0 | 0 | 0 |
| 1 | 20 | 20 | 20 |
| 2 | 50 | 30 | z |
| 3 | 70 | 20 | 23.3 |
| 4 | 80 | y | 20 |
| 5 | 80 | 0 | 16 |
| 6 | x | -9.8 | 11.7 |
(a) Calculate the values of X, Y, and Z.
(b) At what level of employment of labour does the firm experience:
i. increasing returns
ii. decreasing returns
ii. negative returns
(c) State the law of diminishing returns
(d) i. On a graph sheet, draw the total product and marginal product curves.
ii. State any two relationships between the two curves in (d)(i) above
View Discussion (0)WAEC 2020 THEORYOpen circulatory system is found in ________
- A) Lizard
- B) Toad
- C) Fish
- D) Insect
Thy glory, O Israel, is stain upon thy high places! How are the mighty fallen! Tell not in the streets of Ashkelon... How are the mighty fallen in the midst of the battle! The above dirge was written by David when
- A) He killed Goliath
- B) Uriah the Hittite died
- C) Saul and Jonathan died
- D) Abner was killed by Joab
From the words lettered A to D below each of the following sentences, choose the word that is nearest in meaning to the underlined word.
If hedeclines the offer, it will be better for him.
- A. ignores
- B. denies
- C. snubs
- D. rejects
From the words lettered A to E below each of the following sentences, choose the word that is nearest in meaning to the underlined word.
The bond of unity in his country isfragile
- A. strong
- B. weak
- C. ductile
- D. attractive

