Final answer:
To find the total number of leaves that grow on large oak trees in a forest during their lifespan, multiply the number of leaves on a single large oak tree by the number of oak trees in the forest. The approximate number of leaves is 10¹⁰ leaves. Therefore, approximately 10±¹+9; or 10¢ leaves grow on large oak trees in a forest during the lifespan of the trees.
Step-by-step explanation:
To find the total number of leaves that grow on large oak trees in a forest during their lifespan, we need to multiply the number of leaves on a single large oak tree by the number of oak trees in the forest.
Given that a large oak tree has 2×10¹¹ leaves during its lifespan and a large forest has about 5×10¹ oak trees, the total number of leaves in the forest can be calculated as:
Total number of leaves = number of leaves per tree × number of trees in the forest
= 2×10¹¹ leaves × 5×10¹ trees
= 10¹¹ leaves × 10¹ trees
= 10±¹+9; leaves
Therefore, approximately 10±¹+9; or 10¢ leaves grow on large oak trees in a forest during the lifespan of the trees.