He united states postal service recently issued a stamp to publicize the importance of spaying and neutering pets. 2few people realize what an enormous problem pet overpopulation is. 3a letter from the anti-cruelty society of chicago asking for contributions included this information: in june of last year, people turned in 446 cats, 360 kittens, 361 dogs, and 170 puppies. 4in july, the numbers were up, and, in august, they were higher yet. 5in fact, in three months, 4,215 pets were turned in. 6how could new homes possibly be found for all these animals? 7if you think these numbers are incredible, consider this: one unspayed cat can produce over 20,000 kittens in four years. 8even worse, every day, 70,000 unwanted kittens and puppies are born in the united states. stop the suffering of these homeless animals. 10have your pets spayed or neutered, and contribute to your local animal shelter to it publicize the pet population problem. how many supporting points does this writer offer?

it provides 4 supporting details, coming from 3,5,7, and 8

Tip: when you are looking for supporting details, look for things with statistics in them. Also, be sure that the detail is a fact not an opinion.

Some details are simply statements, and not supportive at all.

Ex of a supp. Detail:"Even ​worse, every​ day, 70,000 unwanted kittens and puppies are born in the United States. "

Ex of a non supp detail(statement):"Have your pets spayed or​ neutered, and contribute to your local animal shelter to help it publicize the pet population problem. "

Ex of a non supp detail(opinion):"Few people realize what an enormous problem pet overpopulation is."

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.