Correct Answer: D. 1:52

Correct Answer: C. accessible

Correct Answer: C. monobasic

Explanation

a)

• Hacking of information in the internet, which is an unauthorized access to information on the internet
• Use of the internet to slander and blackmail computer users
• Phishing, which is obtaining secured and sensitive information of computer users for malicious use
• sending of unsolicited messages (spams) to e-mail users Sending of computer virus to the computer software to replicate and transfer itself to other computer systems to attack users' computer systems and databases.
• cyber bullying which involv?s the use of internet to harass users with SMS and web chat.

b)

• Multiple messages: The company can send multiple messages to many customers in different geographical location at the same time.
• Affordable: messages can be sent to customers through e-mail at a very low cost
• Customer satisfaction: customers can order for the company's product through e-mail
• Customer relationship: it can be used to send good will messages to customers on festive seasons
• Reach: customers can be reached through e-mail at all times
• Education: e-mail can be reached through e-mail at all times
• Stimulation: It could be Used to stimulate demand by constantly reminding customers of the existence of the company's product
• Promotion: It could be used to promote the image of Ajax Limited
• Direction: E-mail could be used by Ajax Limited to direct their customers to the company's nearest distributor/office.
• Loyalty: E-mail could be used by the company's to create brand loyalty
• customer complaints: It enhances customer's satisfaction when their complaints are responded to immediately by the company through e- mail.

Correct Answer: D. 14.3

Correct Answer: C. heat and pressure

Correct Answer: A. fed by rivers with outlets to the sea

Correct Answer: C. Supreme Court

Correct Answer: A. 7:4

Explanation

\(\frac{4m + 3n}{4m - 3n} = \frac{5}{2}\)

\(5(4m - 3n) = 2(4m + 3n)\)

\(20m - 15n = 8m + 6n\)

\(20m - 8m = 6n + 15n\)

\(12m = 21n\)

\(\frac{21}{12} = \frac{m}{n}\)

\(m : n = 7 : 4\)

Correct Answer: D) bush fallowing

Explanation

The question is asking about a farming practice where a land that has been used for cultivation is left unused for some years before it is used again. This practice is called bush fallowing. It is a way of allowing the land to regain its fertility and improve crop yield. Crop rotation is a farming practice where different crops are planted in a particular order on the same land over a period of time to maintain soil fertility and reduce pest and disease build-up. Continuous cropping is a practice where crops are planted on the same land repeatedly without allowing the soil to rest and regain its nutrients. This practice can lead to soil depletion and may result in low crop yield. Mono cropping, on the other hand, is a farming practice where only one type of crop is grown repeatedly on the same land. This practice can lead to soil depletion, pest and disease build-up and reduced crop yield. In summary, the farming practice where an exhausted land is left unused for some years before cultivation is called bush fallowing. This practice helps to improve soil fertility and crop yield. Crop rotation, continuous cropping and mono cropping are other farming practices used to maintain soil fertility and improve crop yield.