Answer:
See below
Step-by-step explanation:
The correct three answers are:
1) The burning of fossil fuels has caused pollution. (When fossil fuels burn, they release carbon dioxide and other greenhouse gases causing greenhouse effect and also contributing to the depletion of ozone.)
2) High demand for natural resources has led to overuse and scarcity. (Due to increasing population, more resources are needed, thus more are needed to be produced. Hence, leading to overproduction, then overuse and scarcity.)
3) The release of greenhouse gases has contributed to climate change. (The greenhouse gases trap sunlight rays thus causing an increase in the global temperature. This is causing icebergs and glaciers to melt hence, can be a reason of extreme flooding. So, greenhouse gases are contributing to climate change.)
Hope this helped!
~AH1807
Peace!