Share electrons, have electrical conductivity and have thermal conductivity
Answer:
Resistivity Method
Explanation:
A disadvantage of some geophysical techniques based on magnetism is that their use in urban areas may be subject to distortion resulting from power lines and metals in the immediate vicinity. One method that can be used in such areas relies on soil moisture and the ground's resistance to electricity and is known as Resistivity.
It is usually carried out by injecting a small electrical current through the earth and measured a subtle sub-surface change in resistance over a given area.
Answer:
a) 
b) 
Explanation:
Given that:
- mass of rod,

- length of the rod,

<u>(a)</u>
<u>Moment of inertia of rod about its center and perpendicular to the rod is given as:</u>



(b)
<u>Moment of inertia on bending the rod to V-shape of 60 degree angle and axis being perpendicular to the plane of V at the vertex.</u>
<em>We treat it as two rod with axis of rotation at the end and perpendicular to the plane of rotation. </em>
<em>So, the mass and the length of the rod will become half of initial value.</em>


![I=2[ \frac{1}{3}\times 0.2\times 0.3^2]](https://tex.z-dn.net/?f=I%3D2%5B%20%5Cfrac%7B1%7D%7B3%7D%5Ctimes%200.2%5Ctimes%200.3%5E2%5D)

D. similar types of rocks and fossils
A hypothesis about what might happen in the lab might be 'oxygen will react with hydrogen to form water molecules'.
<h3>What is a hypothesis?</h3>
A hypothesis is a given explanation of a particular scientific question emerged by observing the real world.
Hypotheses are explanations that must be tested (either confirmed or rejected) by using the scientific method.
In conclusion, a hypothesis about what might happen in the lab might be 'oxygen will react with hydrogen to form water molecules'.
Learn more about lab hypothesis here:
brainly.com/question/11555274
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