Xerophytes are mostly found in the

Step 1: Analyze the question The question asks where xerophytes are mostly found. The key is knowing what "xerophyte" means.

Step 2: Explain the concept The word comes from Greek: xeros = dry, phyton = plant. Xerophytes are plants adapted to survive in places with very little water. Their adaptations include:

• Thick, waxy cuticle to reduce water loss
• Reduced leaves or spines (e.g., cactus) to cut down transpiration
• Sunken stomata, often with hairs
• Deep or widespread roots to find water
• Fleshy stems or leaves that store water

Step 3: Evaluate the options

• A. Arid land: Deserts and dry regions have very little rainfall, so this is exactly where xerophytes thrive. ✔
• B. Tropical rainforest: Very wet. Plants here are hygrophytes or mesophytes, not xerophytes.
• C. Montane forest: Cool, moist highland forest, so it is not a dry habitat.
• D. Sudan savanna: It has a distinct dry season, and some plants there show xeromorphic features. However, it still receives seasonal rainfall, so it is not the place where xerophytes are mostly found. Arid land is the best answer.

Step 4: Answer Xerophytes are mostly found in arid land, which is option A.

Exam tip: Link the prefix to the habitat: xero- = dry → xerophyte = dry land plant; hydro- = water → hydrophyte = water plant; meso- = medium → mesophyte = moderate moisture. When you see "most," choose the extreme habitat (arid land) over a partly dry one (savanna).