Answer:
Did the global surface temperature increase steadily from 1995 to 2013?
Did sea ice extent in polar regions reduce because of melting from 1995 to 2013?
Explanation:
Only two questions are directly related to global warnings increasing sea levels:
- Did the global surface temperature increase steadily from 1995 to 2013? Increasing temperature of the Earth's surface is actually what warming means.
- Did sea ice extent in polar regions reduce because of melting from 1995 to 2013? If the polar ice melts then the sea levels will rise.
The other three questions were about the negative effects of rising sea levels, but not what could cause them.
Answer:d) Mono-alphabetic substitution rules
Explanation: Poly-alphabetic cipher is the cryptography that is done by using the many alphabets in substitutional way. They are supposed to have a good security because they use cipher text alphabets for the encryption and then decrypts it.
Substitution of the alphabets is done by the rule of the mono-alphabetic substitution rules.Other given options are incorrect because they are not used in the cryptography of the alphabetic cipher. Thus option (d) is the correct answer.
