Question

An example of a positive feedback loop ________. A) are birds migrating south in response to colder temperaturesB) are predators eating most of their prey and then declining in numbersC) is a thermostat turning on the furnace as the temperature dropsD) is a pond becoming more acidic as a result of pollutionE) is melting arctic snow exposing dark surfaces that heat up and cause further melting

Answer 1

Answer:

D. Pond becoming more acidic to the pollution.

Explanation:

• As the universe consists of two types of loops the positive and the negative feedback loop they are thus called the reinforcing and balancing types of loops in the ecological systems. Aggravates the system

• The positive loop or the feedback may be that the pond reaction to the chemicals thus becoming more of acidic as a result of pollution  

• For example, the polar ice caps form a positive loop by the increase in greenhouse gases the melt is induced due to the spread effects and that is a universal phenomenon.

• In order to balance or bring a balance, the pond must become neutral or basic.