Thermometers 1 A thermometer is a device that measures temperature or temperature gradient, using a variety of different principles. The word thermometer is derived from two smaller word fragments: thermo from the Greek for heat and meter from Greek, meaning to measure.hermometers 1 A thermometer is a device that measures temperature or temperature gradient, using a variety of different principles. The word thermometer is derived from two smaller word fragments: thermo from the Greek for heat and meter from Greek, meaning to measure.
The absolute value of GDP in Rwanda rose â¬213 $490 million with respect to 2013. The GDP per capita of Rwanda in 2014 was â¬491 $662, â¬5 $23 higher than in 2013, it was â¬486 $639.
Ethiopia-Agriculture. Photo by: vagabondanna. Agriculture, which constituted 46 percent of GDP and more than 80 percent of exports in 1998, is by far the most important economic activity in the Ethiopian economy (1998 est.).An estimated 85 percent of the population are engaged in agricultural production.hoto by: vagabondanna. Agriculture, which constituted 46 percent of GDP and more than 80 percent of exports in 1998, is by far the most important economic activity in the Ethiopian economy (1998 est.).