Name one neighbor country that shares a boundary with Bolivia.

The direct neighbors of Bolivia are: Argentina, Brazil, Chile, Paraguay, Peru.

Name one neighbor country that shares a boundary with Venezuela.

The direct neighbors of Venezuela are: Brazil, Colombia, Guyana.

Name one neighbor country that shares a boundary with Bulgaria.

The direct neighbors of Bulgaria are: Greece, North Macedonia, Romania, Serbia, Turkey.

Enter any valid (syntactically correct) e-mail address.

An e-mail address consists of a local-part, followed by the @ symbol, and a domain name. The local part may use latin letters (upper- and/or lower-case), numbers, and certain symbols like a . or _ etc. The domain name also allows numbers and letters but fewer symbols and needs to have a . separating the top-level domain.

The regular expression used for validation is:

^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$

which covers the most important (but not quite all) rules that an e-mail address has to satisfy. For more details see https://en.wikipedia.org/wiki/Email_address.

Enter any valid (syntactically correct) e-mail address.

An e-mail address consists of a local-part, followed by the @ symbol, and a domain name. The local part may use latin letters (upper- and/or lower-case), numbers, and certain symbols like a . or _ etc. The domain name also allows numbers and letters but fewer symbols and needs to have a . separating the top-level domain.

The regular expression used for validation is:

^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$

which covers the most important (but not quite all) rules that an e-mail address has to satisfy. For more details see https://en.wikipedia.org/wiki/Email_address.

Enter any valid (syntactically correct) e-mail address.

An e-mail address consists of a local-part, followed by the @ symbol, and a domain name. The local part may use latin letters (upper- and/or lower-case), numbers, and certain symbols like a . or _ etc. The domain name also allows numbers and letters but fewer symbols and needs to have a . separating the top-level domain.

The regular expression used for validation is:

^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$

which covers the most important (but not quite all) rules that an e-mail address has to satisfy. For more details see https://en.wikipedia.org/wiki/Email_address.