4.3 climate

Question 1

what is climate

Answer 1

the average temperature and precipitation in an area over a long period of time (typically 30 years)

Question 2

what does a positive feedback loop do

Answer 2

positive feedback loops amplify the original disturbance

Question 3

what does a negative feedback loop do

Answer 3

negative feedback loops negate or decrease the effects of the original disturbance

Question 4

what is a greenhouse gas

Answer 4

a greenhouse gas traps infrared light (heat) in the atmosphere, causing the earth’s temperature to rise

Question 5

how has earth’s co2 concentration changed over the past century

Answer 5

it has drastically increased

Question 6

What do ice cores tell us about the patterns of CO2 and temperature for the past 800,000 years

Answer 6

ice cores show that CO2 and temperatures have gone up and down a lot in the past, but that our current CO2 concentration is higher than it has been before