Waste

Waste

• Waste are things that we  no longer use and would throw away.
• Waste may include materials such as old magazines, old newspapers, boxes, glasses and plastic bottles, metal containers and food residues.
• Food and plants are throw away are known as organic waste.
• We can find these waste from markets and food stalls.
• Chemical waste can come from agriculture, factories and our home.
• Smoke from the burning of fuel in factories and vehicles are waste that are let out into atmosphere.
• The amount of waste produced by human activities is increasing. 
• In some places, the local authorities will provide proper facilities to dispose of the waste.
• We should play our parts to make sure we use the proper ways of disposing of waste.
• Use the bins provided by the local authority to throw our waste.
• It is a good habit to sort our waste into different types before throwing them away.
• Chemical waste can be put into special containers and disposed of appropriately.

Plant Competition

Plant Competition

• Like animal, plants living in the same habitat have to complete for the same factors in order to survive.
• Plants need water, carbon dioxide, sunlight and nutrient to make food.
• Plants get water and nutrient from the soil.
• If there are too many plants growing in the same area, the place will be overcrowded.
• They complete for sunlight, water, nutrient and space.
• Competition can occur among plants of the same species or of different species.
• When competition occurs, the plants that receive enough water, nutrient and sunlight grow better and healthier. 
• Weaker plants may become stunted, wilted or die.