Nutrients Pollution
Surface Water Pollution
Oxygen Pollution
Answer:
Elements that are the border line of metals and non-metals.some elements near the stepped line have mixed properties of metals and non-metals these elements are called metalloid e.g. Silicon and Germanium
Explanation:
I hope this will help you:)
Matter is anything that has mass. everything has matter, even the air.
Are based on the laws of Heredity