What is the gerund phrase in this sentence it is important to seal windows and doors properly to prevent heat or cold from escaping through gaps

What mistakes are there in the sentence sarahas hands were cold and clammy

Read this passage from "the pedestrian" by ray bradbury: which sentence best describes the overall impact of the setting?

In january 2014 and i started 1 million pennies project she put donation jars in school and shops and set up a webpage to of said donations online her gold was to collect 1 million pennies or 1000 chandra’s planned to give the money to a group called growing food for the group plant gardens and deliver the products it grows to people in need