Shari and her family change their use of transportation. they use their private automobile less often, and instead rely more on public transportation, bicycles, and walking. how does their change in behavior affect their ecological footprint? a. the footprint decreases, because the family uses fewer energy resources and reduces their emissions of greenhouse gases. b. the footprint decreases, because the family travels across a smaller area of land. c. the footprint increases, because vehicles such as buses and subways use more energy than a private automobile. d. the footprint is not affected, because the family's use of resources is approximately the same as before.

Option A, The footprint decreases, because the family uses fewer energy resources and reduces their emissions of greenhouse gases

Explanation:

The carbon footprint depends on the count of total CO2 or any other green house gas released by an individual.

Since , Shari and her family decided to use sustainable mode of transportation (green transport)  like walking and bicycling , then almost the entire pollution while travelling through these two modes of transport will become zero. However, switching from private transportation to public transportation will reduce pollution release by a large extent , thereby reducing the carbon footprint.

Hence, option A is correct.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

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