"Barren" means empty, devoid of life, or when referring to a woman, unable to have children. So, "empty" is the correct answer. None of the other answer choices are close in meaning to "barren": "fecund," "fertile," and "abundant" are synonyms which all mean plentiful or producing a lot of life, so "barren" is an antonym of "fecund," "fertile," and "abundant."

Since "isolated" means far away from other places and people, "remote" is the best answer choice, since it means far away. "Lonely" is a tempting answer choice, but just because someone is "isolated" does not necessarily mean they are "lonely."

“Secluded” means private, hidden away, sheltered. To provide further help, an “amateur” is someone who does something for fun and not for work; “enticing” means tempting; “exquisite” means lovely, perfect; “polymorphous” means taking many forms.

"Civic" is an adjective that means "of or relating to a city or town, especially its administration; municipal," or "of or relating to the duties or activities of people in relation to their town, city, or local area." So, "local" is the correct answer because "local" means "belonging or relating to a particular area or neighborhood, typically exclusively so," and is the closest synonym to "civic" amongst the listed answer choices.

"Apart" means distant from each other.

Something that is "urban" is in the city or pertains to the city. "In the city" is the best choice because it is a part of the definition of "urban." Considering the other chocies, "crowded" means having little space, "spacious" means having a lot of space, and "in the country" is the definition of rural.

"Urban" means having to do with cities as opposed to the countryside. "Metropolitan" is the best match because it means relating to a large city.

"Internal" means on the inside, so "inside" is the correct answer. "Exterior" means on the outside. "Accessible" means able to be reached. "Confident" means self-assured. "Visible" means not hidden and able to be seen clearly.

The prefix "mis-" means done wrong or badly, so something that has been “misplaced” has been placed incorrectly. This is closest in meaning to “lost.” To provide further help, “limpid” means clear; “morose” means very sad and serious; “supreme” means best or highest; “searched” means looked for. 

"Appropriate" means suitable or proper for what is going on. Fitting also means suitable or correct for a situation, so "fitting" is the correct answer. As for the other answer choices, to "fumble" something means to use one's hands in a clumsy manner while doing something, "queasy" means feeling sick or ill to one's stomach, "entire" means whole or with no parts missing, and a "chamber" is a large room.