The sun is the primary source of light. Other artificial sources are light bulb, torch light and some others. Thats all i can think of.
Answer:
Radiation is transferred through electromagnetic waves so D.
Explanation:
B would be the correct answer because organic things are made from living things such as,plants
Answer:
tensional force
Explanation:
It usually exist in fluid or any liquid substance where by an object is put before it
e.g An ant can walk on water without submersed in it.
A rock formed from the crystallization of magma is called an igneous rock. We know this rock forms from the cooling and / or solidification of lava or magma - usually from volcanoes, most of the time.