To survive, humans need resources found on the Earth. Why is this true?
A.
Humans could not eat, drink, and breathe without the resources of plants, water, and air.
B.
Humans could not have cars without the resources of fuels and metals.
C.
Humans could not have television without the resources of fuels and minerals.

A is the correct answer

Explanation:

A is correct because food sources from plants, water and air are very important for humans to survive on Earth. television and cars are not really what people NEED to survive on Earth. Food and water are more important than those two.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.