【简答题】Man is not only a dweller in nature, he also transforms it. Humanity converts nature’s wealth into the means of the cultural, historical life of society. Man has subdued and disciplined electricity an...
【简答题】Everywhere man is altering the balance of nature . He is facilitating the spread of plants and animals into new regions, sometimes deliberately, sometimes unconsciously . He is covering huge areas wit...
【简答题】Everywhere man is altering the balance of nature.He is facilitating the spread of plants and animals into new regions, sometimes deliberately, sometimes unconsciously.He is covering huge areas with ne...