Answer:20 times 30 equal 600
Explanation:
Not defined because of the vertical line.
The two worst method of waste
management are disposal to landfill and thermal treatment.
Disposal to landfill adds up
to the pollution in a certain place where the landfill is located. It can also
cause some diseases from the landfill.
<span>Thermal treatment or
incineration is a process that involves combustion of organic substances
converting the waste into ash, heat, and flue gas.</span>
The first step in the formation of a hotspot volcano is lava erupts and forms an island. Magma<span> generated by the </span>hot spot<span> rises through the rigid plates of the </span>lithosphere<span> and produces active volcanoes at the Earth's surface.</span>
