What does sustainability mean as it is used in this sentence from "The Ride of His Life"?

He focuses his research and life's work on marine resource sustainability

A. action of converting waste into reusable material

B. surroundings in which a person or animal lives

C. process by which organisms use sunlight to create food

D. ability to be maintained at a certain rate or level

what is a theme?

ans: the implicit idea of a written work of literature is called a theme.

so, the only theme of "birdfoot's grampa" by joseph bruchuc is that as a human being one should always remember the value of every life on earth.

the grampa is stopping the car again and again to save those little toads from washing away in the heavy rain is an act of kindness and humanity.

could you put the choices and excert up hun