1. Which of the following is NOT a primary mineral? A. Mica
B. Feldspar
C. Quartz
D. Limestone

2. Which soil texture allows water to move through soil most quickly?
A. Sand
B. Loam
C. Clay
D. Silt

3. Which of the following is NOT used to classify soils?
A. Depth
B. Texture
C. Color
D. Structure

4.Which horizon is known as top soil?
A. E horizon
B. O horizon
C. A horizon
D. B horizon

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.