The answer is False. Permafrost does not thaws briefly in the summer since Permafrost is all year round. As global temperature rise, the amount that frozen soil that melts is increasing. With warmer temperature, snow and ice that used to reflect sunlight is disappearing. Thus, the newly exposed soil absorbs heat from the sunlight, and encourages melting.
Answer:
The electric field inside the wire will remain the same or constant, while the drift velocity will by a factor of four.
Explanation:
Electron mobility, μ =
where
= Drift velocity
E = Electric field
Given that the electric field strength = 1.48 V/m,
Therefore since the electric potential depends on the length of the wire and the attached potential difference, then when the electron mobility is increased 4 times the Electric field E will be the same but the drift velocity will increase four times. That is
4·μ = 
Answer:
Heat the solution, dissolve the solute, and let it cool verifying nothing settled out.
Explanation: