Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
Answer:
Groundwater
Explanation:
Groundwater, which is in aquifers below the surface of the Earth, is one of the Nation's most important natural resources. Groundwater is the source of about 33% of the water that county and city water departments supply to households and businesses (public supply).
Answer:
dwarf planets orbit the sun
dwarf planets are round
pluto is a dwarf planet
Answer:
Option A. Air pollution can cause water pollution.
Explanation:
Substances can permeate into the water from the air.