According the the section of the "carnivore's dilemma," it is a natural thing for humans to be vegetarians. The author provided some evidence by stating that many doctors believe that "humans are naturally herbivores."
Physically speaking, humans do not have sharp claws (like usual carnivores) and sharp teeth for ripping meat. So, this means that humans are not meant to be carnivores. Thus, it is just a natural thing that for humans to eat vegetables rather than meat.
Rational numbers are basically numbers which are in the form of p/q where p and q are not equal to 0 Therefore p can be both +ve and -ve But Natural numbers start from 1 , ie they are always positive Therefore the answer is B. sometimes
A linear equation has 1 for all exponents on the placeholders aka the equation is first degree (aka the hightest exponent on placeholders=1) so it is linear
