Answer: C) 3 Explanation: To join 'n' tables 'n-1' conditions should be satisfied. So to join 4 tables 3 conditions should be satisfied.

Answer: D) Fiber-optic Explanation: Fiber-optic physical or wired connection is the fastest communication connection.

Answer: C) Polymers are complex molecules composed of random sequences of atoms Explanation: Polymers are complex molecules composed of random sequences of atoms is the only statement which is not true regarding polymers.

Answer: C) data design Explanation:

Answer: A) TRUE Explanation: Carbon monoxide is one of the major pollutant present in the world. The six most common pollutants include ozone, carbon monoxide, sulfur dioxide, lead, nitrogen oxides, and particulate matter.   Carbon monoxide is a common atmospheric pollutant. It is produced largely in combustion processes like in industries and in vehicles. It is a gas that cannot be seen nor smelled.

Answer: B) 315360000 sec Explanation: We know that, 1 year = 365 days 1 day = 24 hours 1 hour = 60 minutes 1 minute = 60 seconds.   Then, 1 year = 365 x 24 x 60 x 60 seconds. = 8760 x 3600 1 year = 31536000 seconds.   Hence, 10 years = 31536000 x 10 = 315360000 seconds.

Answer: D) Daughter Explanation: The relation is father and daughter. As we go with male gender, will be son of A. But it is given in the question that B is not the son of A. Hence, te only possile is B is female and B is daughter of A.

The sheet number on the map is found in bold print in both the upper right and lower left areas of the margin.