Questions

When exports are greater than imports, net exports are positive and similarly, when imports are greater than exports, net exports are negative.

When a country imports goods, it buys them from foreign producers. The money spent on imports leaves the economy, and that decreases the importing nation's GDP.

Partition is the word which is used for separation, dividing, mark off, etc... Compunding, union, attaching, total, etc... are antonyms of partition.

The memory which can be retained even the power is off is called as Permanent memory or Persistent memory. Computer's hard drive is an example of permanent memory and computer's cache or RAM are examples of temporary memory.

The law of conservation of mass states that in any closed system the mass of the system is neither created nor destroyed over time i.e, the mass cannot be changed overtime.

Hence, the given statement is true.

Atal Bihari Vajpayee was a Member of Parliament for 12 times i.e, 10 times for lok sabha and 2 times for rajya sabha.

The correct order of evolutionary history from the above given options is jellyfish, reptiles, mammals.

The highest cricket ground in world is in India at Himachal Pradesh. Himachal Pradesh Cricket Association Stadium, Dharamshala, is situated at 4780 feet above the sea level and is one of the most beautiful stadium in the world.

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment.

Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. This removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation.

Secondary treatment removes the soluble organic matter that escapes primary treatment. It also removes more of the suspended solids. Removal is usually accomplished by biological processes in which microbes consume the organic impurities as food, converting them into carbon dioxide, water, and energy for their own growth and reproduction.

Tertiary treatment includes removal of nutrients such as phosphorus and nitrogen and practically all suspended and organic matter from waste water.