You are in free guest mode.
Timed Practice
Revision List
Attempt History
Progress Tracking
Create a free account to unlock these tools
Practice Reading: Fill in the Blanks (Dropdown)
ID: #52398
Particle pollution
* Select the correct answer into all dropdown fields. You need to answer all questions before clicking verify button.
Particle pollution — also called particulate matter (PM) — is made up of particles of solids or liquids that are in the air. Particle pollution can come from two different kinds of sources primary or secondary. Primary cause particle pollution on their own. For example, wood stoves and forest fires are primary sources. Secondary sources let off gases that can form particles. Power plants and coal fires are examples of secondary sources. Some other common sources of particle pollution can be either or secondary — for example, factories, cars and trucks, and construction sites. Smoke from fires and emissions from power plants, industrial facilities, and cars and trucks contain PM2.5. Breathing in particle pollution can be to your health. Coarse particles, called PM10, can irritate your eyes, nose, and throat. Dust from roads, farms, dry riverbeds, construction , and mines are types of PM10.
Result:
With a free account:
Retry and compare every attempt.
How difficult was this question?
Others found:
90% Easy · 0% Medium · 10% Hard
Saving...