Answer:
combustion of manure piles in hot weather
Explanation:
A manure piles are heap of animal waste or excreta mainly the waste from horse manure and the bedding which is stored to decompose and reduce in bulk.
Particulate matter is a mixture of small particles as well as liquid droplets that causes pollution and is harmful to health.
Burning of manure piles can cause to fly the dust and the dirt in the animal manure in the air and it leads to particulate matter suspended in the air.
Answer:
The molecules in the water spread apart. The molecules in the thermometer's liquid spread apart. When a thermometer was placed in water to measure the water’s temperature. the molecules in the thermometer liquid which is often mercury spreads apart and rises, this shows a temperature increase in the thermometer.