Yes.
No, there is no hyphen in "twenty-first century." When used as an adjective, it is written as "twenty-first," but when referring to the era as a noun, it is simply "twenty-first century" without a hyphen between "twenty" and "first."
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There is no specific scientific name for scarecrows as they are not a distinct species or organism. Scarecrows are man-made objects used to deter birds and other animals from crops.
Panama used ecotourism to rebuild.
21st is usually hyphenated when spelt. Dictionaries list it as 'twenty-first'. However, as a book/article title, or in company names, it is sometimes written as Twenty First ... as in 'Twenty First Century Poets', but, as this could be interpreted as meaning a book about 1st century poets, a hyphen would remove any ambiguity e.g. written as 'Twenty-first Century Poets' or 'Twenty-First Century Poets' (unless, of course, the book is actually about 1st century poets, in which case a better title would be 'Twenty First-Century Poets'!)
Hardwood lumber, such as oak, was used for 67 percent of the wood in pallets at the turn of the twenty-first century.
In the twenty-first century, businesses use advanced data analytics tools, machine learning algorithms, predictive modeling techniques, and artificial intelligence to forecast trends, demand, sales, and other key metrics. These technologies help businesses make more accurate predictions and informed decisions to plan for the future effectively.
Scarecrows are used in agriculture to deter birds and other animals from eating crops. They are placed in fields to create the illusion of a human presence, which can help reduce damage to crops from pests.
Well, they tend to use scarecrows, but you may be thinking of a recent news item where a ship's figurehead depicting 19th century Swedish opera singer Jenny Lind was discovered on a farm outside Gothenburg by a local antiques dealer. It was being used as a scarecrow. *** But if you are asking regarding the trivia question on the FB App Kidnap! The answer is Tomtars, which are Swedish trolls. ***