How does weathering help and harm ecosystems? Do humans contribute to weathering in any way? If so, should we try to minimize our impact or is it not detrimental to plants and animals?

The us is first  the  u.s. economy  remains the  largest in the world  in terms of nominal  gdp. however, the  u.s. economy  loses its spot as the number one  economy  to china when  measured  in terms of  gdp  based on ppp. in these terms, china's  gdp  is $23.19 trillion exceeds the  u.s. gdp  of $19.42 trillion

No, because you are more likely to see volcanic mountains where magma is rising along the mid-ocean ridge spreading to the center.