Many people continue to use cars and motorcycles even though they know that they are bad for the environment. Why is this the case? What can be done to reduce the use of these vehicles? Give reasons for your an
What percentage of all Earth's water is in a form that is usable to humans and land animals? How does heavy rain contribute to mass wasting? How could a landfill site contaminate groundwater? What criteria are primarily used to classify mass wasting?