Answer: A) Stratification Explanation: Stratification as actually the settling down of sediments with different properties to form layers/strata over years. Stratification especially occurs on the bed of water bodies such as oceans.   Stratified sedimentary rocks are used to study the ecological conditions over previous years/eras.     The other choices like Windstorms, Glacial Ice and Stream water are mediums which sediments are transported.

Answer: B) 40 Explanation: The third proportional of two numbers p and q is defined to be that number r such that p : q = q : r.   Here, required third proportional of 10 & 20, and let it be 'a' => 10 : 20 = 20 : a 10a = 20 x 20 => a = 40   Hence, third proportional of 10 & 20 is 40.

Answer: D) Trajectory Explanation: The path traced by planet is called Orbit. Similarly, the path traced by projectile is called Trajectory.   Hence, Planet : Orbit : : Projectile : Trajectory.

Answer: C) does not use oxygen but tolerates it. Explanation:

Answer: C) Future Explanation: Yes, future is always infront of us, but no one can see it.

Answer: A) doing more work in less time. Explanation: Doing more work in less time, results in an increase in power to do a work.

Answer: B) Public Explanation: An IP address (internet protocol address) is a numerical representation that uniquely identifies a specific interface on the network. Addresses in IPv4 are 32-bits long. This allows for a maximum of 4,294,967,296 (2^32) unique addresses. Addresses in IPv6 are 128-bits, which allows for 3.4 x 1038 (2^128) unique addresses.   IP addresses available to the internet are classified as Public.

As now, the time 4 : 48 pm after 45 min it will be 4:48 + 45 min = (4 hrs : 48 + 12 min) pm + 33 min = 5 hrs : 33 min pm. Hence, it is 5:33 pm.