In nearly all science courses at university, there are significantly more male students than female students.

In nearly all science courses at university, there are significantly more male students than female students.
What is the reason for this?
What could be done to balance out the numbers?

Reminder:
The above text is a topic for task 2 in the IELTS General/Academic Training Writing test.
You should spend about 40 minutes on this task.
Write at least 250 words.

Note:
Bear in mind that to attain a higher band score for task accomplishment, you must ensure that your essay includes each of these aspects:
1. Address all aspects of the question.
2. Clearly state your standpoint.
3. Organize your essay effectively.
4. Use cohesive linking phrases.
5. Utilize a diverse vocabulary.
6. Demonstrate grammatical accuracy with varied structures.
7. Thoroughly review and edit your essay.