Which of the following behaviors are environmentally sustainable?

The company’s new car is based on an environmentally friendly __________.

Ingeneral,thetemperatureofendothermsisregulated____.（） A: consciously B: internally C: inadequately D: environmentally

Maglev trains have many advantages. They are fast, safe, and environmentally friendly.

I think it is important to produce household electrical appliances that are __________. A: good for the environment B: environmentally friendly

Until only recently did hydroelectric power was universally considered as an environmentally safe and clean means of electricity generator.

The green building movement originated from the need and desire for more energy efficient and environmentally friendly construction practices.

The company’s new car is based on an environmentally friendly ___. A: atmosphere B: condition C: concept D: idea

The electronic cards are the favorite with Web users with their advantages of being free in charge, being environmentally, friendly and being fast in delivery.

What are the typical features of WPCs? A: weather resistant B: environmentally sustainable C: long-lasting D: higher maintenance costs