2. which of the following could be said about ecological footprints? a. ecological footprints can't be used to determine carrying capacity. b. the average ecological footprints for various countries are nearly identical. c. ecological footprints don't take into account resources needed to absorb and manage wastes. d. exact ecological footprints are often difficult to calculate, but estimates can be useful in comparing populations

B. is correct. Exact ecological footprints are often difficult to calculate, but estimates can be useful in comparing population

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

a covalent bond, specfically triple bond