Hazy weather has caused great concern. Read the material and answer the questions. Material 1: 20 13 13, Beijing released the meteorological history of Beijing.

(1)PM2.5 is very harmful to human body. After inhalation, it will directly enter the bronchus, interfere with the gas exchange in the lungs, and cause diseases including asthma, bronchitis and cardiovascular diseases.

(2) The weather features prone to haze are less precipitation, high temperature and low wind speed;

(3) Things that smog can do to improve air quality in life include green travel, bus travel and low-carbon life.

So the answer is:

(1)PM2.5 is very harmful to human body. After inhalation, it will directly enter the bronchus, interfere with the gas exchange in the lungs, and cause diseases including asthma, bronchitis and cardiovascular diseases.

(2) The weather features prone to haze are less precipitation, high temperature and low wind speed;

(3) Green travel, bus travel and low-carbon life.