Correct Answer: A. harmful

Correct Answer: A. Supreme Council for Islamic Affairs

Correct Answer: B. offering credit facilities to the consumers

Explanation

Wholesaler performs the functions of collection and storage of goods, distribution, financing and risk taking. Wholesalers do not offer credit facilities to the consumers

Correct Answer: A. I and III only

Explanation

Fish farming can be combined with vegetable production and poultry production for mutual benefits. The waste from the fish can be used as fertilizer for the vegetables, and the vegetables can help filter the water for the fish. Similarly, poultry droppings can serve as a source of food for the fish, and the fish waste can be used as a source of protein for the poultry. Therefore, the correct answer is 'I and III only'.

Correct Answer: A. drawee

Correct Answer: B. The Ganges Basin

Correct Answer: D. checks and balances

Correct Answer: B. 0 to 5

Explanation

To find the change in the oxidation number of phosphorus, we need to determine its oxidation number in the reactant (P) and in the product (P₂O₅).

1. Oxidation number of phosphorus in the reactant (P):

* Phosphorus (P) on the reactant side is in its elemental state.

* The oxidation number of an element in its elemental form is always 0.

* Therefore, the oxidation number of P is 0.

2. Oxidation number of phosphorus in the product (P₂O₅):

* P₂O₅ is a neutral compound.

* Oxygen typically has an oxidation number of -2 in compounds (unless it's a peroxide, superoxide, or bonded to fluorine).

* Let 'x' be the oxidation number of phosphorus.

* The sum of the oxidation numbers in a neutral compound is zero.

* So, for P₂O₅:

2(x) + 5(-2) = 0

2x - 10 = 0

2x = 10

x = +5

* Therefore, the oxidation number of P in P₂O₅ is +5.

3. Change in oxidation number:

* The oxidation number of phosphorus changes from 0 to +5.

Comparing this with the given options:

A. 0 to + 2

B. 0 to 5

C. +4 to + 2

D. +4 to +5

The correct option is B.

The final answer is B

Correct Answer: D. Three of the answer choices are correct.

Explanation

Enzymes do not alter the equilibrium constant because enzymes are not consumed in the reaction. Hint: Write out the equation for the equilibrium constant and notice that there is no variable for enzymes. Enzymes are sensitive to temperature and pH, as high temperatures and very low pH can cause denaturation of an enzyme. Enzymes are only optimal at certain pH and temperature ranges.

Explanation

Factors affecting the choice of transport of frozen products:

(i) The reliability of the transport company in delivering goods must be taken into consideration before making his choice.

(ii) The seller should consider the mode that will provide safe and secure delivery for the frozen products.

(iii) Speed/urgency: The most suitable means for delivery of the product before spoilage should be considered.

(iv) Distance: If the destination is far air transport will be preferred for frozen product.

(v) Customer's directives should be considered when deciding which mode should be used.

(vi) Availability of choices: The availability of refrigerated ships, aircrafts and motor vehicles will be considered when choosing the means.

(vii) Nature of the means: Frozen products should be moved with refrigerated containers.

(viii) The cost of transportation charged by available means will be considered in choosing the mode.

(ix) Weather conditions: The owner of the goods will consider a means that will not be subjected to weather changes that will harm the goods to be sent.

(x) The quantity/volume of goods to be carried will influence the choice of the means.

(b) Disadvantages of Air Transport:

(i) The weight of the goods carried is limited as bulky goods cannot be carried.

(ii) The cost of transport is higher when compared to other forms of transport.

(iii) Air transport is subject to high degree of risks e.g. bad weather makes landing difficult.

(iv) Arrival and departure procedures are cumbersome.

(v) Air transport does not complete a journey. It requires other forms of transport e.g. taxis to complete the journey.

(vi) Inflexibility as flights are scheduled and fixed.

(vii) The maintenance cost of airplane is expensive.

(viii) Accidents when they occur are fatal.