Because the production cost of the rubber, rice, and thus bring incomparable because tires must be planted over 7-8 wings that are screaming tires. But rice takes 3 to 4 months just to build, it can be harvested.
The cost of production of rubber and rice. It brings incomparable. The tires have planted more than 7-8 years to rubber. But rice cultivation takes only 3 to 4 months, it can be harvested.
Because the production cost of rubber and rice. The different yet. Because the rubber have planted over 7 - 8 years to rubber, but the rice planting 3 to just take 4 months, it can be harvested.