How the people of dryland survived?

Click the item in the left column. use the plus sign to move it up or the minus sign to move it down until it matches the correct entry in the right column. lock your answer in place by clicking the square beside the item. (a checkmark means it is locked.) amazon basin a atacama desert b andes mountains c lake titicaca d peru e patagonia f brazil g chile h suriname

What is the main source of phosphorus?

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.