Solar thermal energy is also being used worldwide for hot water, heating, and cooling. Biomass: Biomass energy includes biofuels such as ethanol and biodiesel, wood and wood waste, biogas from ...

Farmers collect haystacks to be used to generate biomass power in Mengcheng county, Anhui province, in May. HU WEIGUO/FOR CHINA DAILY Organic waste, including wood, crop byproducts and animal ...

The psychologist Abraham Maslow created this model. It maps different motivations onto a five-level pyramid, with each level representing a different human need. Maslow also felt that fulfillment ...