The human population has increased rapidly since the 1700’s. For most of human history, there were fewer than half-billion people on Earth. In mid- 2009, 6.7 billion

people inhabited our planet. Because of these, extensive pollution is everywhere. As

a student, what can you do to save not only a particular system, but the Earth

itself? Write your answer in the table.

to sow awareness in the community about the importance of caring for our environment

Explanation:

The pollution is the adverse introduction of contaminants in the environment by human action. Pollutant compounds have different origins and they appear in the form of chemical substances, noise, heat, light, etc. The best way to avoid pollution on our planet is to raise initiatives for improving environmental policies and thus promoting sustainability in our communities. It seems like a small contribution, but it is important to have into account that behavior change is the most powerful thing that we have to produce big results.

Some good ways to avoid pollution are:

-Restricting the use of the wood stoves

- Reduce the kilometers in your car

-Avoid burning trash, and other substances

- Avoid the use of plastic material (such as plastic bottles)

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.