<u>Answer:</u>
Composting food scraps in the cafeteria to reduce landfill waste would have the greatest impact in reducing the school’s ecological footprint.
Option: (C)
<u>Explanation:</u>
- Reducing the ecological footprint means bringing about some changes in lifestyle and living to improve the biocapacity. 
- Compositing food scraps in the cafeteria to reduce landfill waste is the best option that the environmental club can apply to reduce the school's ecological footprint. 
- This step can help to increase productivity of soil as well as reduce waste in landfill site. 
- The option of incineration of trash causes air pollution. Likewise, reducing recycling bins will not be helpful in decreasing the ecological footprint.
- Instead, it causes the unmanaged collection of trash in school environment. 
 
        
             
        
        
        
A total of 52 total chromosomes would be present in an intestinal cell from a platypus. Two copies of each chromosome will be found in the somatic cell of the platypus. Ten of the chromosomes will be the sex chromosomes. 
        
             
        
        
        
It’s mass and speed. This is because the equation for Kinetic energy is KE=1/2mv^2