Billion tonnes

Although uranium concentration in seawater is only about 3 micrograms per liter, the quantity of uranium dissolved in the world’s oceans is estimated to amount to 4.5 billion tonnes of uranium metal (tU). In contrast, the current conventional terrestrial resource is estimated to amount to about 17 million tU.

5p christabelhuynh 30-05-2020 24 1   Download

Sugarcane is the world's predominant commercial crop. In the world it is cultivated on an area of 23.8 m ha with a cane production of 1.69 billion tonnes. In India, sugarcane occupies an area of 4.3 m ha with a total cane production of 300 m t and productivity of 77 t ha-1 . In Karnataka, it is grown on an area of 0.33 m ha with a production of 30 m t and productivity of 88 t ha-1.

19p quenchua4 06-04-2020 6 1   Download