<p>I’m sure you can study abroad with almost any degree, especially foreign languages, they sort of prompt you to do so…</p>
<p>If you are not going through additional education after undergrad, a biology degree is a bad idea. You will have a lot of trouble finding a good job with a BS in biology, even with a foreign language minor.</p>
<p>Of the three you have listed, Environmental Engineering is probably the safest choice. Environmental Science is also pretty decent as many companies are hiring them to help determine their environmental impact, government agencies hire them to manage land, etc. </p>
<p>Glad to see you are also interested in a foreign language. I also want to learn Russian. To be honest though, it won’t really help you that much in the workplace unless you’re in business, international relations, etc. But there is an unusually high percent of Russians living in the USA compared to other countries, so I’m sure there is some application of it.</p>