Answer:
81
Explanation:
Which is Chemical Equation is Balanced?
CH, +0,------CO,+2H2O
4A1+30,-----2A1,0,
H2+O2-----2H,0
THIS is SO easy PLEASE help ME ! ill ALSO mark YOU brainliest !
According to the picture above, which layer contains :
Answer:
a) layer 4
b) layer 1
Explanation:
Older the layer=older the fossils
Newer the layer=newer the fossilss
3. What is physical science mainly about? *
the relationship between matter and energy
O the relationship between matter and light
the relationship between molecules and matter
O the relationship between light and energy
PLZ HELP!!
Answer: D
Explanation: Physical science is the study of the inorganic world. That is, it does not study living things. (Those are studied in biological, or life, science.) The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.