Answer:
The pulmonary artery carries blood from the heart to the lungs.
Explanation:
The first step to take in order to help reduce pollution is option C. Maintain a clean, healthy home as an example for others to follow. Change should start with yourself. In order to promote cleanliness and to reduce pollution, you should start it with yourself before encouraging others to do so. In that way, people would also be motivated and inspired to change and improve their ways.
Obsessive–compulsive disorder (OCD) is amental disorder where people feel the need to check things repeatedly, perform certain routines repeatedly (called "rituals"), or havecertain thoughts repeatedly. People are unable to control either the thoughts or the activities for more than a short period of time.