Day: October 1, 2019

Air pollutants

Air pollutants

Air pollutants are classified into two large groups: gases and particles. Normally, polluting products are mixed in the air. Its…

Biomass energy

Biomass energy

Although its name suggests the opposite, biomass was the first fuel used by mankind. In a generic way, biomass means…

Underground water

Underground water

Groundwater is what is found under the earth’s surface and occupies the pores and fissures of the most solid rocks….