Answer:
C - the survey respondens tended to be from a homogeneous social background and therefore not representative of the nation as a whole.
Explanation:
If C were true, it would invalidate both the survey and and the conclusion as if the group were homeogenous and only represented one social group (background), the options would not be varied and only indicitive of that group.
Answer:
Some regions are distinguished by physical characteristics.
Physical characteristics include land forms, climate, soil, and natural vegetation.
Some region are distinguished by human characteristics.
These may include economic, social, political, and cultural characteristics.
Explanation:
A place is space that is different from other spaces. Regions are areas defined by unifying physical and/or human characteristics.
Answer:
Electromagnetic waves are created by a charged particle that generates an electric field. The electric field creates a magnetic field. As the charged particle moves the electric field and magnetic field keep changing, which causes the wave to move.
Explanation:
Let me know if it helps
Answer:
Answer is first line of defense.
Explanation:
The point of defense to be adopted by any individual or organization when there is security problem is first line of defense.
The first line of defense involve the employers setting policies that will guide against the security problem. This starts by making sure that their employees personally protect all the information they have at their disposal.
Also, the employer can set up electronic securities that can alert, when there is any attempt on their saved information.
These methods can be adopted to guide against the leaking of their information.
Answer: Education & Military
