Correct Answer: C. audience participation

Correct Answer: A. an indirect election

Correct Answer: D. 2 x \(10^{6}Hz\)

Explanation

V=f\(\lambda, f =\frac{v}{\lambda}= \frac{3\times10^8}{150}\Rightarrow 2\times10^6\)Hz

Correct Answer: D. X and Y represent atoms of different elements.

Explanation

Let's analyze the properties of elements X and Y, assuming the most common context for such a question in chemistry: X and Y represent different forms of the *same* element, or are related in a specific way. The options strongly suggest they are related as isotopes.

• Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Let's evaluate each statement based on this understanding:

• A. X and Y have the same number of electrons.

* For neutral atoms, the number of electrons equals the number of protons. Since isotopes of the same element have the same number of protons, their neutral atoms will also have the same number of electrons.

* This statement is TRUE (for neutral atoms).

• B. X and Y have the same number of protons.

* By definition, isotopes are atoms of the *same element*, and an element is defined by its number of protons (atomic number). Therefore, isotopes must have the same number of protons.

* This statement is TRUE.

• C. X and Y are isotopes.

* This is the fundamental assumption that makes the other options meaningful in this context. If they are isotopes, then they are isotopes.

* This statement is TRUE.

• D. X and Y represent atoms of different elements.

* Since isotopes are different forms of the *same* element (defined by having the same number of protons), they cannot represent different elements. If they were different elements, they would have a different number of protons.

* This statement is FALSE.

The question asks which of the following is not true. Based on our analysis, statement D is not true.

The final answer is D

Correct Answer: D. environment

Correct Answer: A. allegory

Explanation

Explanation of agricultural terms such as: (a) Salvage Value: (i) this applies to farm assets such as machinery which depreciates in value. (ii) The asset depreciates in value to a point where it may attract little value. (iii) at this point, it is termed obsolete and sold off as scrap. (iv) The receipt of such sales is called salvage value.

(b) Farm inventory: (i) refers to the records of all the assets and liabilities of a farm, (ii) Examples of assets are cash at hand, land and landed properties, machinery, crops and livestock. (iii) Examples of liabilities include loan payments and interest. (iv) A good inventory records can assist the farmer to obtain bank loans, i.e they make him more credit worthy.

(c) Farm assets: (i) refers to all property and cash owned by a farmer. (ii) Examples are landed property, buildings, machinery, crop and livestock owned by the farmer. (iii) An evaluation of the assets gives the net worth of the farmer. (iv) can assist in obtaining bank loans for developement.

(d) Point of diminishing return: (i) In production practices, there are usually fixed and variable resources or inputs. (ii) When variable resources are being increased against fixed resources, there is usually increase in the yields, e.g. fertilizer application rates being increased against the plot of land. (iii) There is a point at which additional application of this variable resources against the fixed assets, leads to while maximum returns, after which further increases in the variable factor will lead to a decline in the returns. (iv) The point at which this net return begins to decline is usually referred to as the point of diminishing returns. (v) This law is very important in agricultural production because there is a maximum level of application of resources which may lead to net loss. This should be avoided.

(e) Depreciation: (i) refers to the reduction in the value or performance of an asset, e.g. a farm machinery. (ii) Depreciation is the value at purchase over the value after a number of years of use (iii) Rate of depreciation usually varies with the type of fixed asset. The more durable asset depreciates at a i slower rate than the less durable ones. (iv) Depreciation is taken into account in the annual valuation of the farm.

Correct Answer: D) I, II, III & IV

Correct Answer: D. refuted

Correct Answer: D. maize grain