Q. Why the world trade in oil is so great?

View solution

Q. The north America oil production is 15.8%, while its consumption is

View solution

Q. What is the average birth rate in developed countries?

View solution

Q. What is the average birth rate in developing countries?

View solution

Q. What is the source of food for krills?

View solution

Q. Krills are the major source of food in

View solution

Q. The dense population which organism gives the ocean a reflection of pink color?

View solution

Q. Nutrients and minerals are kept in suspension, where they can be used by the

View solution

Q. To preserve a wide range of plants and to guard against the continuos loss of hereditary materials is known as

View solution

Q. What is the basis of food chain?

View solution

Q. During the long hours of the day in summers in the southern oceans, there is almost a constant

View solution

Q. Southern Ocean consists of

View solution

Q. What determines the relative percentages of sand, silt and clay in the soil?

View solution

Q. What allows the high yield of phytoplankton in the southern oceans?

View solution

Q. What is the best way to preserve genes?

View solution

Q. Which ocean has cold water and rich in life?

View solution

Q. The zooplanktons in the southern oceans are dominated by a 5cm long shrimps like

View solution

Q. Population growth and technological pressure means ecology is under

View solution

Q. Why is soil red in color?

View solution

Q. Gene bank are vulnerable to disease,human error and

View solution