Answer: it is chemical .
Explanation: because chemical change that results in the formation of new chemical substances. During the sun tanning, both vitamin D and melanin are produced. your welcome <3 .
Answer:
2000metres
Explanation:
Pressure= density x height x gravity
Gravity is always a constant = 10N/kg
so height= Pressure/( density x gravity)
h= 20000000/(1000 x10)
h= 2000 metres
Answer:
They are hard.
Explanation:
that’s all i have to say ngl
Answer:Metaloids have properties of both metals and non-metals.
Explanation: