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Aleksandr [31]
3 years ago
6

What is the cause to air pollution??? please help me!!!!

Geography
2 answers:
Nookie1986 [14]3 years ago
7 0
Air pollution can result from human and natural actions events that pollute the air included forest fires , volcanic eruption, wind erosion etc.......
nata0808 [166]3 years ago
5 0
Basically particles that shouldn't be in the air are there from burning coal and other different air pollutants. 
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Read 2 more answers
33. What is the mass of 1 ha of soil to 15 cm g/cm, soil bulk density 1.5 Mg/m) 10, 000 m2 SUi a. 1,500,000 kg b. 3,038,608 kg 2
Oliga [24]

Answer:

The correct option is: 2,250,000 kg  

Explanation:

Given : Area A = 1 ha (Hectare) = 10,000 m²

Bulk density = 1.5 Mg/m³ = 1.5 × 1000 kg/m³ = 1500 kg/m³ (∵ 1 Mg=1000 kg)

Depth of soil = 15 cm = 0.15 m   (∵ 1 m = 100 cm)

Volume  can be calculated by:

Volume = area × Depth = 10,000 m² × 0.15 m = 1500 m³

As we know, density = mass/ volume

Therefore, <u>Mass of soil</u>  = Bulk density × volume = 1500 kg/m³ × 1500 m³ = 2,250,000 kg

4 0
4 years ago
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