Little is known about life on the ocean floor, for scientists have only recently developed the technology to explore it. The sentence that states cause is :

الجواب D
a) Little is known about life
b) the technology to explore it
c) Little is known about life on the ocean floor
d) Scientists have only recently developed the technology to explore it


------------------باقي الامثلة يمكن تجي بالاختبار-------------------


cause is اللي تحته خط

Due to) the ability of computers to keep records of sales and inventory, many big)
department stores rely on them


A medical computer system is an aid to physicians (because of) its ability to interpret
data from a patient’s history and provide a diagnosis


War, famine, and ethnic violence (have caused) a flood of refugees in the past 50 years


Holes are created in the protective ozone layer of the stratosphere (as a result of) the
burning of fossil fuels.