Answer:
Inside a star there is force of gravity balanced by the outward force of pressure. The star nuclear reactions are kept under control by a pressure temperature thermostat.
Explanation:
Answer:
Mohs hardness scale is a scale comparing hardness of rocks. There are 10 marker rocks 1-10. They are used to find the relative hardness of the other rocks.
Explanation:
Classification is subject to change because science is an evolving subject. New things are discovered every year and thus changing the way we understand the world around us.
You can reduce the levels of matter pollution by reducing the amount of particulate matter produced through smoke and by reducing vehicle emissions. Reduce the amount of particulate matter produced through any types of smoke.