Correct Answer: A. 2

Correct Answer: B. Wheat, iron ore and crude oil

Correct Answer: D) semicircular canals

Explanation

The question is asking about how movement and positions of the head are detected in humans. The options are cochlea, malleus, utriculus, semicircular canals, and outer car. To answer the question, we need to understand the role of each of these options in the human body. The cochlea is a part of the inner ear that is responsible for hearing. It converts sound vibrations into electrical signals that are sent to the brain. The malleus is one of the three small bones in the middle ear that transmit sound vibrations from the eardrum to the inner ear. The utriculus is a part of the inner ear that senses linear acceleration and head tilts. The semicircular canals are also part of the inner ear and are responsible for detecting rotational movements of the head. The outer ear is responsible for collecting sound waves and directing them towards the eardrum. Based on these explanations, we can see that the correct answer to the question is option D, the semicircular canals. These canals are responsible for detecting rotational movements of the head, which includes movements like tilting and turning. The utriculus, on the other hand, detects linear movements, while the cochlea and malleus are responsible for hearing. The outer ear collects sound waves. In conclusion, the semicircular canals are responsible for detecting movements and positions of the head in humans. This is important for maintaining balance and orientation in space. To learn more about this topic, please refer to your Biology textbook.

Correct Answer: B) N12,100

Correct Answer: B) God is three persons in one

Explanation

The Christian doctrine that God is Trinity means that God is three persons in one. This means that there is One God who exists in three distinct persons

Explanation

Advantages of Monopoly are:

(i) Standardization which is the basis of cheaper production is better practised under monopoly.

(ii) Centralized management.

(iii) Economies of large scale production.

(iv) Greater efficiency resulting from an assemblage or pool of specialized managerial skill.

(v) Avoidance of duplication and wastes often associated with perfect competition especially in the supply of social services.

(vi) A greater opportunity to expand operations because the uncertainty usually associated with a state of free competition has been eliminated.

Disadvantages of Monopoly are:

(i)There is the danger of exploitation of the consumers:

(ii) Inefficient and unprofitable nature of state monopolies often as a result of political interference and nepotism.

(iii) Desire for supernormal profit may lead to restriction in output and hoarding.

(iv) Consumers lose freedom of choice.

(v)Absence of competition often results in decline of efficiency

Correct Answer: D. invisible export

Correct Answer: D. 96.0g

Correct Answer: D. Delivering agricultural education and training to farmers

Explanation

The role of agricultural extension officers in the field of agriculture is primarily to deliver agricultural education and training to farmers. Agricultural extension officers work closely with farmers, providing them with information, knowledge, and technical expertise to improve their farming practices. They facilitate the transfer of scientific research and technology to farmers, helping them adopt modern and sustainable agricultural practices.

Correct Answer: C. aqua culture