Answer:
I think the B Tanzania is the correct
Answer:
Statement that is true about electromagnetic and mechanical waves is:
Option B: Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium to travel.
Explanation:
'Electromagnetic' waves do not need any medium to travel whereas 'mechanical waves' need a medium or matter for transmission. Electromagnetic waves are produced by the 'vibrations' of the charged particles. They can even travel in vacuum.
On the contrary, mechanical waves are caused by the 'wave amplitude'. Mechanical wave can travel in solid, liquid and gas and are considered to be periodic disturbance.
Thus, Option B is the most statement apt explaining the difference between electromagnetic and mechanical waves.
Answer:
Egyptians left things for the afterlife in their tombs.
Explanation:for example they left their gold and other possessions.
Answer:
creative, and practical intelligence a single factor
Explanation:
General intelligence by Charles Spearman can also be regarded as
"g factor" it is the general mental ability which underlies different specific skills such as numerical, including verbal , mechanical as well as spatial. He stressed that level of specific abilities can be predicted by the levels of general intelligence
