Coordinating Conjunctions

There are many kinds of forests in the world, tropical rain forests are the most fascinating.

In rain forests, trees form a dense canopy most of the sunlight is shut out.

Leaves fall to the warm, damp forest floor, they decay and release nutrients.
Options:
1. Leaves fall to the warm, and damp forest floor, they decay and release nutrients.
2. Leaves fall to the warm, damp forest floor, and they decay and release nutrients.
3. Leaves fall to the warm and damp forest floor, they decay and release nutrients.
4. Leaves fall to the warm, damp forest floor and they decay and release nutrients.

Animals need forests in order to live forests provide places to live and sources of nourishment.

There is a carefully balanced food chain in forests this nourishes all forest creatures.

Some countries cut down rain forests they institute programs to help maintain the forest as a resource.

Identify the correct sentence about acid rain: Acid rain, a product of air pollution mixing with rain to develop sulfuric acid, is a threat, and it has damaged some forests.

Forests perform several vital functions for other living things they clean carbon dioxide from the air and prevent soil erosion.

People have been clearing forests for thousands of years deforestation has increased as the earth's population has increased.

In order to help save forests, governments have set aside national parks groups replace felled trees with new ones.