Plz 100 ! if changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. oxygen level in water is therefore a(n) with respect to the number of trout that a particular stream can support.

Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city.