1.
Broad, flat, low-lying areas, no higher than 200 m above sea level.
2.
Lower than the adjoining land.
3.
Is the difference of the height from place to place. It is affected by the geology below and relies on the structures of the rocks.
4.
Raised, flat ground, higher than plains.
5.
Natural elevation, make mountain ranges when aligned.
6.
A natural feature of the earth's surface.
7.
A narrow strip of land with sea on either side, forming a link between two larger areas of land.
8.
The tidal mouth of a large river, where the tide meets the stream
9.
A narrow strip of land with sea on either side, forming a link between two larger areas of land.
10.
A small bodie of still waer formed naturally or by artificial means.
11.
The presende in or introduction into the enviroment of a substance which has harmful or poisonous effects.
12.
Heigh above a given level, especially sea level.
13.
A cultivated plant that is grown on a large scale comercially, especiall a cereal, fruit or vegetable.
14.
The science, art or occupation concerned with cultivating land, raising corps, and feeding, breeding and raising livestock.
15.
The science or practice of planting, managing, and caring for forests.
