The trail past the falls is closed. Loose rocks fall after heavy rain, and the path has no railing. Do not walk beyond the red marker. What is this text mainly trying to do?

Dear Ms. Cruz: Our class is studying water quality. May we visit your testing lab on May 12? Any morning that suits you is fine. What is this letter mainly trying to do?

The new bus route starts on Monday. Trips leave the terminal every 20 minutes from 5 a.m. to 9 p.m. The fare is PHP 15. What is this text mainly doing?

Rice hulls hold little water and much silica. Silica resists heat, so a hull chars slowly instead of bursting into flame. That is why farmers burn hulls to dry stored grain. What is this text mainly doing?

Lola insisted her rooster could tell time. It crowed at four, at nine, and again whenever our neighbor began to sing. Lola said the bird simply had taste. What is this text mainly trying to do?

Our barangay should keep the covered court lit until 9 p.m. Teenagers now play on the highway shoulder after dark. Lights cost little and keep them off the road. What is this text mainly trying to do?

A leaflet is titled 'Facts About Our Water District.' Every paragraph ends by praising the new manager, and the last page is a form readers sign to support him. What does the leaflet actually do?

A post opens, 'Just sharing my honest experience.' The rest lists a store's discount codes, its branch addresses, and a link that opens the store's order page. What does the post actually do?

A memo headed 'Reminder' says the canteen now opens at 6 a.m. Its final line tells every team leader to submit meal counts by Friday. What does the memo actually do?

A journal article reports that the assay found high serum ferritin in 62% of the cohort, matching the hepcidin pathway described in earlier trials. Who is this written for?

A clinic handout says: 'Ferritin is how your body stores iron. Think of it as a pantry. A high reading means the pantry is full, so we will test you again next month.' Who is this written for?

A report asks for approval of PHP 480,000 to replace the packing line, gives a payback period of 14 months, and ends with an authorization form to sign. Who is this written for?

A notice beside the machine says: check that the guard is down and the belt is clear before your shift. Report a jam to your line leader. Never restart it yourself. Who is this written for?

A student essay begins, 'Dear settler on Mars, by the time you read this, our forests may be gone.' The essay is handed in only to her teacher. Whom does the essay address?

A letter names the broken gate beside the Grade 8 building, is addressed to the school principal by name, and asks for a reply before enrollment week. Whom does the letter address?

A page lists five numbered parts, uses the words first, next and finally, and names the tool needed in each part. What is this text mainly trying to do?

Never pour bleach into a drain cleaner. The mixture gives off a gas that burns the lungs and the eyes. Open a window before you begin cleaning. What is this text mainly trying to do?

The provincial library will open its new reading room on June 3. The room holds 4,000 titles and 20 study seats, the head librarian said. What is this news lead mainly doing?

An article headed 'What Every Parent Should Know' gives one paragraph of general advice, then eleven on why one vitamin brand is best, and closes with an order form. What does it actually do?

'This is only my opinion,' the writer begins. She then cites three studies, a barangay census and a court ruling, and ends by urging readers to vote against the plan. What does the piece actually do?