Identify the independent variable in this experiment light

How can you work on building positive relationships?

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

What is the primary purpose of this blog? to inform people about the new sports park to entertain people with details about the warbler to persuade people to protect the warbler to convince people to support the city council