Which one is the correct spelling?

1.The passage is about ¾.

2.Scientists have ¾ fossils of a human-like creature in a deep cave in South Africa.

3.Counting is a combination of several skills, each ¾ on the other.

4.Migrants streaming into Europe have ¾ fierce storms, navigated turbulent waters and encountered police batons.

5.Lions are extremely good ¾ weighing ¾ their odds of success in terms of the number of themselves versus the number roaring from a loudspeaker.

6.15 year old Anurudh Ganesan has invented a portable refrigeration system that enables doctors to transport vaccines safely and effectively. A synonym of the underlined word is.

7.Don't be so impatient, ¾.

8.Most metals expand and contrast ¾ variations ¾ temperature.

9.The university will build a new dormitory ¾ campus.

10.I can't quite ¾ out what the sign says.

11.I don't remember ¾ .

12.I will inform Bahar as soon as I ¾ any news.