Question

Is x positive? Statement (I): \( xy = 6 \)
Statement (II): \( x(y^2) = 12 \)

• A. Statement (I) alone is sufficient.
• B. Statement (II) alone is sufficient.
• C. Both statements (I) and (II) are sufficient.
• D. Neither statement is sufficient.

Hint:

In a system of equations, if one equation contains a higher power of a variable than the other, division is a powerful tool to eliminate variables.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The prompt requests the main goal of the Kyoto Protocol, a major global environmental agreement.


Step 2: Detailed Explanation:
The Kyoto Protocol served as an extension to the 1992 United Nations Framework Convention on Climate Change (UNFCCC).
Its central aim was to bind participating nations to cut down on greenhouse gas emissions, driven by the scientific agreement that anthropogenic \(CO_2\) emissions are the main cause of global warming.


Step 3: Final Answer:
The correct choice is (B).