the answer is texile manufacturing
<span>C.the railroads had to pass over mountains and rivers</span>
Irreversibility refers to the preoperational child's tendency to "believe that what has been done cannot be undone".
Irreversibility is a phase in early child advancement in which a kid erroneously trusts that activities can't be turned around or fixed. For instance, if a three-year-old kid sees somebody straighten a ball of play dough, he won't comprehend that the batter can without much of a stretch be changed into a ball. Kids regularly develop past this phase by age seven.
Answer:
Biomagnification of DDT leads to an increase in its concentration at the higher trophic level and its higher concentration in birds leads to the disturbance in their calcium metabolism. ... In this way, the biomagnification of DDT leads to a decrease in the bird population.
Explanation:
