In July, at middle latitudes in the Northern Hemisphere, the day is ____ long and is ____ with each passing day.

The correct answer is: C. More than 12 hours; getting longer.

In July, at middle latitudes in the Northern Hemisphere, the day is more than 12 hours long and is getting longer with each passing day. This is because the Northern Hemisphere is tilted towards the sun in July, which means that the sun’s rays are more direct. As a result, there are more hours of daylight in July than in any other month of the year.

Option A is incorrect because the day is more than 12 hours long in July. Option B is incorrect because the day is getting longer, not shorter. Option D is incorrect because the day is more than 12 hours long, not less than 12 hours long.