Answer:
Curd is acidic in nature, because an acidic substance has less value of pH. A milkman adds a very small amount of baking soda to fresh milk. Why does he shift the pH of the fresh milk from 6 to slightly alkaline? Answer: By making the milk more alkaline, it takes more time to turn into curd.
The entire range of electromagnetic frequencies is known as C, the electromagnetic spectrum.
Television remote controls (D) do NOT use radio waves (they use infrared radiation).
A material that allows some, but not all, light to pass through it, would be described as translucent (C).
Answer: 
Explanation:
As we know that,
![-[m_1\times c_1\times (T_{final}-T_1)]=[m_2\times c_2\times (T_{final}-T_2)]](https://tex.z-dn.net/?f=-%5Bm_1%5Ctimes%20c_1%5Ctimes%20%28T_%7Bfinal%7D-T_1%29%5D%3D%5Bm_2%5Ctimes%20c_2%5Ctimes%20%28T_%7Bfinal%7D-T_2%29%5D)
.................(1)
where,
q = heat absorbed or released
= mass of metal = 100.0 g
= mass of water = 100.0 g
= final temperature = 
= temperature of metal = 
= temperature of water = 
= specific heat of metal = ?
= specific heat of water= 
Now put all the given values in equation (1), we get
![-[100.0\times c_1\times (80-600)]=[100.0\times 4.2\times (80-30)]](https://tex.z-dn.net/?f=-%5B100.0%5Ctimes%20c_1%5Ctimes%20%2880-600%29%5D%3D%5B100.0%5Ctimes%204.2%5Ctimes%20%2880-30%29%5D)
Therefore, the specific heat capacity of metal is 
Deforestation....trees release water vapour..with the trees being cut down less water vapour is being released..
consuming the water.... we use up water for drinking and for our homes etc...
hope this helps!
Answer:
The correct answer is 7,812.5J
