Maria purchased and planted some lovely front-yard trees for her house. Which of the following is an example of a positive externality in the market for front-yard trees? (Mark all that apply) Group of answer choices The trees sequester some carbon, which very slightly reduces the amount of damage done globally from Climate Change The trees provide partial shade on Maria's house, which lowers her energy bill during hotter months. The front yard trees are beautiful and increase the property values of neighbors' houses. The front yard trees are beautiful and increase the property value of Maria's house. The trees provide habitat for wild animals and birds, which help the local ecosystem thrive by improving the health of parks and other natural areas that people enjoy