Ecological Factors Continues

Biology SSS 1 Second Term

WEEK 8

Ecological Factors Continues

Performance Objectives

Student should be able to:

1. Give the relationship between soil types and water holding capacity
2. Know simple methods of measuring ecological factors

Content

Soil is defined as the uppermost layer of the earth crust which provides support and nutrients for plant growth, and a habitat for some animals.

Types of Soil

There are three major types of soils. These are sandy soil, clay soil and loamy soil. These Soil types vary in the ability to retain water for vegetative growth.

A. Sandy Soil

A soil is said to be sandy if the proportion of sand particles in a sample of soil is very high. The particles are mainly quartz…