Questions

Distance between two Consecutive Crests or two Consecutive Troughs is called Wavelength. But the distance between crest and adjacent trough is half the wavelength.

That is the distance between adjacent crest and trough is called Half the wavelength.

A search engines are a software systems used for searching about any information in the world on the web.

Search engines like Google, Bing, Internet explorer, Yahoo, etc... functions by providing relevant search results for the keywords user searches. 

Hence, the given statement is TRUE.

Capital of Niger is Niamey

Competition  occurs when two or more organisations act independently to supply their products to the same group of consumers.

There are mainly two cases when firms can compete. One is price where firms are selling identical or very similar products, they must compete on price with each firm trying to undercut the others. The other is differentiation. A non-price competition depends on making a product different from those of competitors and by giving it distinctive qualities that are valued by the target market. This might include branding, styling, special features or higher levels of customer service. Good competition provides more options to customers and also brings with it improved  customer services.

The project details and description will usually have less detail at the beginning of the project and will increase as the characteristics are progressively elaborated. Answer A is incorrect because the team should confirm that they understand the esence of the scope of the project, even if the details might be ambiguous at the beginning of the project. Answer B is incorrect because the project should go forward; however, the team should request further clarification of what the project scope entails. Answer D is incorrect because the project selection criteria should be established before the project begins.

Pinctada vulgaris is a bivalve from which pearl is obtained.