Explanation

Fathometer: سمندر کی گہرائی کو جاننے والا آلہ

A fathometer is an instrument used to measure the depth of the ocean or any body of water, specifically the distance from the surface to the seabed.

It uses sound waves to calculate the depth by measuring the time it takes for the waves to return.

Galvanometer – Used to measure electric current.

Explanation

Water vapor is directly related to humidity, which plays a crucial role in weather prediction. 

The amount of water vapor in the air significantly influences cloud formation, precipitation, and temperature. 

Therefore, measuring water vapor content is essential for weather forecasting. 

Explanation

The final step of the scientific method is developing a conclusion.

It involves summarizing the findings, interpreting the data, and determining whether the hypothesis was supported or rejected.

The scientific method steps in order:

• Observation
• Hypothesis
• Prediction
• Research
• Experimentation
• Data Analysis
• Conclusion

Explanation

 Convection is the transfer of heat through the movement of a fluid, meaning it occurs in liquids and gases. 

Liquids: In liquids, warmer, less dense molecules rise, carrying heat with them. 

Gases: Similarly, in gases, hot molecules move more readily, transferring heat through the space

Explanation

 None of these options are completely incompressible.

While solids are the least compressible among the three states of matter (solid, liquid, and gas), all of them can be compressed to some degree.