Options: the pressure is the same as that outside, normal atmospheric pressure is maintained by the use of air pumps, the pressure inside is less than the pressure outside, normal humidity and partial vacuum are maintained
The three recognized major fishing grounds of the world are located in the
Options: northern hemisphere only, southern hemisphere only, two in the southern hemisphere only and one in the northern hemisphere, one in the southern hemisphere only and two in the northern hemisphere
Which are the important meeting of the Commonwealth?
Options: Biennial meeting of the Commonwealth Heads of Government (CHOGM), Annual meeting of the finance minister of the member countries, Regular meeting of the minister of education, law, health and other minister, All of the above