stupid geography teacher...!

wah! geog results got back... A2... hmmm not bad... ok... go through... 2nd last question... NOT ALL RIVERS HAVE DELTAS. EXPLAIN WHY THIS IS SO. my answer: SOME RIVERS DO NOT CARRY A LOT OF SEDIMENTS, THUS THE RIVERS DO NOT HAVE TO FIND ALTERNATIVE ROUTES AS THEIR FLOW IS NOT BLOCKED BY HUGE AMOUNTS OF SEDIMENTS. THEY ALSO HAVE FAST-FLOWING WATER WHICH CARRIES THE SEDIMENTS AWAY BEFORE THE SEDIMENTS CAN BUILD UP AND OBSTRUCT THE WAY. her answer: THS RIVERS' MOUTHS MAY BE SHALLOW AND THE RIVERS MAY HAVE STRONG WATER AND CURRENTS ALONG THE COAST. THE RIVER MAY NOT CARRY TOO MUCH SEDIMENTS TO BUILD UP A DELTA. ok... so the fast-flowing water isn;t quite so correct... but i wrote 'did not carry a lot of sediments' compare to hers which is 'may not carry too much sediments' anything wrong? upon 3 marks i only got... 0 marks... nil... zilch... none... how could she???! not like i didn't go and find her... she pointed at the phrase 'huge amounts of sediments' and said, 'go and check your notes! it is obviously wrong!' in what way was that wrong???! huh???! Stupid!!!