TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: The reigning titleholders dedicate their year to promote specific projects and often address issues concerning the environment and other global issues through school tours , tree planting activities , street campaigns , coastal clean ups , speaking engagements , shopping mall tours , media guesting , environmental fairs , storytelling programs to children , eco-fashion shows , and other environmental activities .

SOLUTION: The reigning titleholders dedicate their year to school tours , tree planting activities , street campaigns , coastal clean ups , speaking engagements , shopping mall tours , media guesting , environmental fair , storytelling programs , eco-fashion shows , and other activities .

PROBLEM: For example , a kilometre is 10 ( a thousand ) times the length of a metre , but a square kilometre is 10 ( 10 , a million ) times the area of a square metre , and a cubic kilometre is 10 ( 10 , a billion ) cubic metres .

SOLUTION: For example , a kilometre is one thousand times the length of a metre , but a square kilometre is one million times the area of a square metre .

PROBLEM: The undulating courses of two rivers , the Hondo and the Sarstoon River , define much of the course of the country 's northern and southern boundaries .

SOLUTION:
The Hondo and the Sarstoon River make the northern and southern border .