Magnesium ribbon reacts with dilute hydrochloric acid at room temperature.

(a) State three ways by which the reaction can be made to proceed faster

(b) Write an equation for the reaction.

A cost effective way of disseminating urgent information to a large number of farmers at the same time is through?

• A. demonstration
• B. evaluation
• C. mass media
• D. field trip

Which of the following statements is not a reason for budding? The resulting plants_______

• A. can withstand adverse climatic conditions
• B. flower and fruit early
• C. are more disease resistant
• D. develop broader leave for photosynthesis

In the transverse of a dicot sperm, the region lying between the endodermis and the vascular bundle is the

• A. parenchyma
• B. pericycle
• C. phloem
• D. hypodermis

All these factors determine what a country can produce except

• A. size of the country
• B. technology
• C. climate
• D. natural endowment

The level of urbanization in a country means the?

• A. absolute number of people in the country `living in urban areas
• B. number of urban centres in the country
• C. proportion of the country's population living in urban areas
• D. number of urban centres in the country divided by the of rural settlements

The movement response of a cockroach away from a light source is

• A. negative phototaxism
• B. positive phototaxism
• C. negative phototropism
• D. postive phototropism

Incidences of broken home and irresponsible parenthood are the major causes of the following except

• A. unhealthy growth
• B. armed robbery
• C. migration
• D. cultism

A step-down transformer has a power output of 50 W and efficiency of 80%. if the mains supply voltage is 200 v, calculate the primary current of the transformer.

• A) 0.31 A
• B) 3.20 A
• C) 3.40 A
• D) 5.00 A

Joshua gathered all the tribes of Israel for his farewell address at

• A. Sinai
• B. Bethel
• C. Jordan
• D. Shechem