<span>She was born on July 12, 1997 as the eldest child of Ziauddin Yousafzai and his wife Toorpekai Yousafzai; she has two younger brothers. Her family ran a chain of schools.Her father, an educational activist, taught her Pashto, English and Urdu. Her father sensed early on that there was something special about Malala and encouraged her to think and express herself freely.</span>
This is a compound sentence, because there are two independent clauses here: 1. Stone bridges are strong + but 2. (strong bridges) are costly to build.
The conjunction 'but' connects two independent clauses, and a compound sentence contains at least two independent clauses, whereas a simple sentence has only one.
rippling blue waves
crashing on the sun-burnt sand
causing birds to fly
The answer should be in the prezi
