Question

In which sentence is the underlined phrase an adverb clause? Dogs, such as bloodhounds, have a great sense of smell that allows them to help detectives. Dolphins, whom scientists say can find things with their own sonar, are trained to find underwater explosives. Although we might consider animals as pets, many animals work. A beagle puppy in the Florida Everglades was trained to sniff out pythons in the park.

Answer 1

The sentence that has an adverb clause is:

Although we might consider animals as pets, many animals work.

The adverb clause is ALTHOUGH WE MIGHT CONSIDER ANIMALS AS PETS.

Adverb clause are identified as such when it complete these requirements.
1) has subject and verb. We + consider
2) has subordinate conjunction. Although
3) answers one of the four adverb questions (how, when, where, or why)