add the sentence that best establishes the topic of the paragraph. the trees are distinctive for their huge…

add the sentence that best establishes the topic of the paragraph. the trees are distinctive for their huge, barrel - shaped trunks, some of which can grow to over thirty feet in diameter and nearly one hundred feet tall. during rainy seasons in african savannas, the trunks can store thousands of gallons of water. encasing these trunks is thick, sponge - like bark that helps baobabs to absorb rainwater efficiently and prevent evaporation. when a prolonged period of drought sets in, the trees can rely on their large water stores. the trees will also drop their leaves during the drought to conserve moisture within their trunks. these physical features help to account for the incredible longevity of baobab trees: as of 2023, the oldest living african baobab was estimated to be over two thousand years old. nicknamed \upside - down trees,\ baobab trees have easily recognizable branches that look like roots reaching up towards the sky. baobab trees can be found throughout parts of mainland africa and madagascar, where they have developed adaptations to survive their arid habitats. in their scorching habitats across africa and australia, towering baobab trees can provide much - needed shade to humans and animals. perhaps because of their gigantic size and unusual appearance, baobab trees have long been the subject of myths and legends.

add the sentence that best establishes the topic of the paragraph. the trees are distinctive for their huge, barrel - shaped trunks, some of which can grow to over thirty feet in diameter and nearly one hundred feet tall. during rainy seasons in african savannas, the trunks can store thousands of gallons of water. encasing these trunks is thick, sponge - like bark that helps baobabs to absorb rainwater efficiently and prevent evaporation. when a prolonged period of drought sets in, the trees can rely on their large water stores. the trees will also drop their leaves during the drought to conserve moisture within their trunks. these physical features help to account for the incredible longevity of baobab trees: as of 2023, the oldest living african baobab was estimated to be over two thousand years old. nicknamed \upside - down trees,\ baobab trees have easily recognizable branches that look like roots reaching up towards the sky. baobab trees can be found throughout parts of mainland africa and madagascar, where they have developed adaptations to survive their arid habitats. in their scorching habitats across africa and australia, towering baobab trees can provide much - needed shade to humans and animals. perhaps because of their gigantic size and unusual appearance, baobab trees have long been the subject of myths and legends.

Answer

Brief Explanations:

The paragraph focuses on the physical features (trunks, bark, water - storing ability, leaf - dropping) of baobab trees that contribute to their longevity. The second option "Baobab trees can be found throughout parts of mainland Africa and Madagascar, where they have developed adaptations to survive their arid habitats" best establishes the topic as it introduces the trees and hints at the adaptations (which the rest of the paragraph details) related to their arid habitats. The first option focuses on appearance, the third on shade - providing (not the main focus of the paragraph), and the fourth on myths (not the main focus).

Answer:

Baobab trees can be found throughout parts of mainland Africa and Madagascar, where they have developed adaptations to survive their arid habitats.