Some A-level subjects are less challenging than others, a new study has indicated.
Conducted by the Qualification and Curriculum Authority, research has suggested that geography students may find the subject easier than others, such as history.
The government watchdog also singled out media studies and sociology as subjects requiring more investigation.
"School and college leaders know that exams in all subjects are not equal," deputy general secretary of the Association of School and College Leaders Martin Ward commented.
Subject areas that are perceived to be the most challenging by pupils are mathematics, modern languages and physical sciences.
"Students choose a variety of subjects at both GCSE and A-level, and the perception remains very strong that some subjects are harder than others," he remarked.
It was recently discovered by university administrations service Ucas that university applications have increased by seven per cent this year, while top firm Deloitte noted increased competition for graduate schemes.