Types of crops (Control reading)

There are types of crops.

The oil crop is...

Oil crops, such as ..., are harvested for consumption or industrial uses.

Soybeans, for example, represented ... percent of world oilseed production 

Fuel made from ... crops is called biofuel. 

There are two main types of biofuel that use oil crops...

Biodiesel is made by combining...oils with alcohol.

Ornamental crops are harvested ... forgardening.

.... crop production has deep historical roots. 

... is a major exporter of roses and carnations. 

... is used in tires, machine belts, shoe soles, and other products. 

The first use of rubber was for...