The correct answer is D. E. Photosynthesis and cellular respiration
Answer:
Explanation:
Considering the atmosphere of the primitive earth to have contained water vapor, carbon dioxide, carbon monoxide, methane, and ammonia and/or nitrogen, then in the presence of an energy source, such as sunlight or lightning, a number of small molecules like hydrogen cyanide, HCN, are formed.
The ecological footprint of the average people of Bangladesh is 0.5 global hectares per person which much less than average of the world ( 2.84 global hectares per capita ) .it indicates that a low purchasing power of Bangladesh . less consumption means less production .also there are few industries in Bangladesh. This is the reason the ecological footprint of Bangladesh is so small .
The United states ecological footprint is larger than that of other countries because per capita consumption of energy and a wide range of goods of all kinds is greater . wastes ,including carbon dioxide ,are greater as ell , adding to the relative size of the footprint . this is the reason the ecological footprint of the people of United states is large .
Hence ,the ecological footprint of Bangladesh is so small and the ecological footprint of United states is so large .
<h3>What is ecological footprint ?</h3>
The ecological footprint is a method promoted by the global footprint network to measure human demand on natural capital , i.e. the quantity of nature it takes to support people or an economy .
It tracks this demand through an ecological accounting system .
The ecological footprint is the only metric that measures how much nature and how much nature we use .The footprint helps : countries to improve sustainability and well-being , local leaders to optimize public project investments , individuals to understand their impact on the planet.
Learn more about ecological footprint here:
brainly.com/question/14441911
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The answer is true because walking does not affect the environment
