1
The external factors and forces surrounding and affecting an organism, person, or population.
2
The branch of knowledge that deals with applying science and engineering to practical uses.
3
Functioning effectively with the least waste of time and effort; competent.
4
Characterized by tending toward aggression; warlike; hostile
5
The process of solving a problem, or the state of being solved.
6
Something that prevents or slows progress; an obstruction; hindrance.
7
To bring together; gather into one place; meet:
8
A thing made for a particular purpose, a mechanical or electric invention.
