Correct Answer: D. skillful

Correct Answer: A. cremated

Correct Answer: A)

Zn/Zn\(^{2+}\)//Cu\(^{2+}\)/Cu

Explanation

In a Daniell cell, the reaction that occurs is an electrochemical reaction involving the transfer of electrons between two different metals. The metals used in a Daniell cell are zinc (Zn) and copper (Cu), and their respective ions, Zn\(^{2+}\) and Cu\(^{2+}\). The reaction can be represented as:

Zn/Zn\(^{2+}\)//Cu\(^{2+}\)/Cu (Option A)

In this representation, the forward slash (/) separates the metal from its respective ion, and the double forward slash (//) separates the two half-cells of the Daniell cell. The half-cell on the left (Zn/Zn\(^{2+}\) represents the anode, where oxidation occurs, and the half-cell on the right (Cu\(^{2+}\)/Cu) represents the cathode, where reduction occurs.

During the reaction, zinc loses two electrons and forms zinc ions (Zn\(^{2+}\) at the anode, while copper ions (Cu\(^{2+}\) gain two electrons to form copper metal at the cathode.

The overall reaction can be written as:

Zn(s) + Cu\(^{2+}\)(aq) ? Zn\(^{2+}\)(aq) + Cu(s)

This reaction allows for the flow of electrons in the external circuit and generates electrical energy. The Daniell cell is an important concept in electrochemistry, as it demonstrates the principles of redox reactions, galvanic cells, and the generation of electricity from chemical reactions.

Correct Answer: C. turncoat

Correct Answer: D) deserts

Explanation

Deserts would be the biome in which you would expect to have the shortest growing season. A biome is a large ecosystem that has similar environmental conditions such as temperature, precipitation, and plant and animal life. The growing season is the period of time in which the weather is warm enough and there is enough water for plants to grow. Deserts are known for being very dry and having extreme temperatures, with hot days and cold nights. They also have very little precipitation, which means there is not enough water to support plant growth all year round. Therefore, the growing season in deserts is usually very short. In contrast, tropical rainforests have a warm, humid climate with abundant rainfall, making it possible for plants to grow all year round. Guinea savannas and sudan savannas have a wet and dry season with enough rainfall to support plant growth for a longer period compared to deserts. Therefore, option D, deserts, is the correct answer

Correct Answer: A. Over all performance of a division

Explanation

Departmental accounting is prepared to ensure that the results of each individual department is known

Correct Answer: A. Zakat was instituted to erase poverty

Correct Answer: A. (2,3)

Explanation

(a) Definition of soil: Soil can be defined as unconsolidated weathered materials found in the uppermost layer of the earth surface on which plants grow.

(b)(i) Components of Soil Mineral matter/inorganic matter, Water, Air, Organic matter/living organisms (ii) Percentage of soil components by volume

- Mineral matter = 45% ± 5

- Water = 25% ± 2

- Air = 25% ± 2

- Organic matter/living organisms = 5% ± 2

(c) Description of the process involved in makingcompost using the pit method:

(i)Materials: Straw/grass/weeds/saw dust/lawn clippings, Bamboo/ sticks/straws. Ash, Biodegradable household refuse/ crop residues. Human waste/Animal dung/Farm wastes, Water, Urine, Old compost, Lime/Phosphorus fertilizer/Sulphate of Ammonia, Tester/dip tick

(ii) Preparation

- Dig pit to a convenient size

- Put big pebbles or stones or short poles/elephant grass at the bottom of the pit.

- Fill the pit with lawn clippings, leaves, weeds and other vegetable matter, most of which must be chopped up and mixed properly.

-Spread evenly on top urine, wood ash and animal dung, then sprinkle water

- Repeat the process until the level of the top of the pit is reached

-After one layer has been laid, sprinkle it lightly with lime and add handfuls of soil

- Repeat the sequence above to a convenient height - Insert the tester to test for decomposition.

(iii)Storage -

-Protect from rainfall to prevent loss of nutrients/store under shed

- Protect from direct ray of sun which may destroy the microbes and bake the material.

Correct Answer: D. Muhammad b. Ismail