# 1Pilihan bergandaWhat is the ideal soil pH range for rubber cultivation?5.5 – 6.54.0 – 5.07.0 – 8.0
# 2Pilihan bergandaWhich of the following soil types is most suitable for rubber plantations?Well-drained sandy loamClayey soilSaline soilPeat soil
# 3Pilihan bergandaWhat is the minimum annual rainfall required for optimal rubber tree growth?2000 mm1000 mm1500 mm2500 mm
# 4Pilihan bergandaHow does high rainfall affect soil pH? Leads to more acidic soilIncreases alkalinityCauses neutralizationHas no effect