Know what evergreen means in this chapter, and why a plant standing in mud needs roots above the water.
Preview · progress not saved — Chapter 1 is free
Teak, rubber and coconut shed their leaves gradually, so they are evergreen
Trees like teak, rubber, and coconut are typically found growing in hot and wet regions. These trees generally have a very large number of leaves, which help them thrive in their environment.
The chapter's labelled photographs of teak, rubber and coconut trees

Teak, rubber, and coconut trees grow well in hot and wet regions.
Two questions on evergreen trees and the crops of hot, wet places
Trees that shed their leaves gradually are called:
Mangroves grow in marshy soil and breathe through roots above the waterline
Mangroves are unique plants that grow in marshy soil. A marsh is a very wet, muddy area on land. Because the soil is so muddy and waterlogged, the main underground roots of these plants do not get sufficient oxygen from the soil.
The chapter's photograph of mangroves with roots above the waterline

Mangrove
Two items on mangrove roots and what a marsh is
Mangroves are plants that naturally grow in muddy soil. A is a very wet, muddy area on land. In these areas, the main underground roots do not get sufficient oxygen from the soil. Because of this, portions of their roots come out of the soil and remain above the water level. These special roots take oxygen directly from the air to help the plant survive. Therefore, these breathing roots are also called roots.