Dr. Miller doesn’t want the tigers to vanish. These majestic beasts are disappearing at an alarming rate. Dr. Miller thinks that we should write to our congress people. If we let them know that we demand the preservation of this species, maybe we can make a difference. Dr. Miller also thinks that we should donate to Save the Tigers. Our donations will help to support and empower those who are fighting the hardest to preserve the tigers. We owe it to our grandchildren to do something.

This paragraph is an example of which text structure.

Headaches can have several causes. Many people think that the major cause of headache is nervous tension, but there is strong evidence that suggests diet and environment as possible factors. Some people get headaches because they are dependent on caffeine. Other people may be allergic to salt, or they may have low blood sugar. Still other people are allergic to household chemicals including polishes, waxes, bug killers, and paint. If they can manage to avoid these substances, their headaches tend to go away. When a person has recurring headaches, it is worthwhile to look for the underlying cause, especially if the result of that search is freedom from pain.

This paragraph is an example of which text structure.