Question

In eighteenth century English gardens, \underline{\hspace{1cm}} was used to eliminate visual boundaries between the garden and the landscape.

• A. Stroll garden
• B. Sunken fence
• C. Topiary
• D. Qanat

Hint:

The "ha-ha" or sunken fence is a classic element in English landscape gardening, allowing uninterrupted pastoral views while keeping animals out.

Answer 1

The Correct Option is B

Step 1: Context of English gardens.
During the 18th century, English gardens moved towards the "naturalistic" style, moving away from rigid formal layouts. Designers sought to create continuity between the garden and the wider landscape.

Step 2: The device used.
The sunken fence, also known as a "ha-ha," was a trench with one sloping side and one vertical wall. It acted as a barrier for livestock without obstructing views, thus creating an "invisible" boundary.

Step 3: Elimination of other options.
- Stroll garden → Refers to Japanese-style walking gardens, not English 18th century.
- Topiary → Shaping plants into forms, decorative but not for boundary elimination.
- Qanat → An underground aqueduct system from Persia, unrelated to English gardens.
Hence, the correct answer is Sunken fence.

Final Answer: \[ \boxed{\text{Sunken fence}} \]