This yard is a rectangle of dimensions 20 ft x 30 ft. Meaning you have 2 sides of 20 feet and 2 sides of 30 feet. This would be 100 feet, but you are using 30 feet of a building instead of fence on one side. Therefore it is 100 feet - 30 feet. The final answer is 70 feet total.
Answer:
Militants help the progress of social movement.
Explanation:
Militants usually actively push the progress of social movement.
Militants most at times stay focused on their course making them progress in their push for something.
In the case of social movements, militants push the course to make it live and fruitful, hence, militants greatly help in the progress of a social movement.
The answer is petroleum deposits
I would say c neolithic man / farmer
because in the neolithic era people went from hunting and gathering to farming