1) Which of the following statements in relation to polar bears and climate change is CORRECT? The main driver of polar

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1) Which of the following statements in relation to polar bearsand climate change is CORRECT?
The main driver of polar bear decline due to climate change is adecrease in mortality
Melting sea ice affects the breeding success of polar bears asthey depend on sea ice to build their dens
Polar bear numbers are not actually decreasing under climatechange
All of the above
None of the above
2) Which of the following statements is CORRECT?
To understand why a population of species is declining,researchers only have to understand how one parameter(s)(birth, death, immigration, emigration) is affected by changingclimate
Climate change effects on populations are often hard to predictas birth and death rates can be affected independently
Every species is negatively affected by climate change in oneway or another
Species with high mobility are often more negatively affect byclimate change