The reading tells us, that if our population continues on a projected path, we could be faced with having another 2 billion + people on the planet by the year 2029. It
would be like adding another country of to our planet.

A. Canada

B. Mexico

C. China

D. England

thats correct, but whats the question

explanation:

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.

a. people generally need the same amount of physical activity to maintain weight stability.