Earth has 4 systems/ spheres which are known as Lithosphere(land), Biosphere(living things), Hydrosphere(water) and Atmosphere(air).
Transpiration is the process that interact with the Hydrosphere and Respiration is the process that interacts with the Atmosphere.
Transpiration is the process happening in plants which absorb and distribute water through their roots and release water in the form of vapors through their leaves. As this process involves Water, therefore this process interacts with the Hydrosphere.
Respiration is the process in which plants convert carbon dioxide to oxygen as a part of photosynthesis which was then inhaled by the animals. As this process involves Air, therefore this process interacts with the Atmosphere.
The mass would also be 150g like the first block of wood. Both of their volumes are 300 cm^2, and since they are the same type of wood they have the same density. Therefore following d=m/v, they have the same mass
B.
The energy in nuclear fusion can't be generated in a controlled manner hence difficult to use in a nuclear power plant as a away to produce clean energy.
Explanation:
The reactions in thermonuclear bombs use very highly enriched radioactive elements that release a lot of energy at a go hence the enormous explosions they cause. A nuclear power plant would require this enormous energy to be released slowly to generate electricity. It requires great technology to control the release of this nuclear energy because it requires the control of the rate of chain reactions occurring at a particular time. If the chain reactions are too many at a time, the power plant could explode.
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Initially when we dissolve a solute , rate of dissolution is far exceeding the rate of deposition. But as the concentration of solution increases , the rate of deposition also increases and a situation comes when rate of dissolution becomes equal to rate of deposition that situation is called dynamic equilibrium.
Saturated solution:
It is the solution in which dissolved solute is in dynamic equilibrium with undissolved solute, if we dissolve more solute into it it will not dissolve.
Unsaturated solution:
This solution contains less amount of solute than the equilibrium amount of it. If we dissolve more solute into it , it will dissolve.
Supersaturated solution:
This solution contains more amount of solute than its equilibrium concentration. These solution are unstable.
Answer:
Explanation:
specific heat of granite s = .79 J / g / k
let the mass of granite = m
heat lost by granite = heat gained by water
heat lost = mass x specific heat x drop in temperature
= m x .79 x (80 - 20.45)
heat gained by water
= 3000 x 4.186 x (20.45- 20)
heat lost by granite = heat gained by water
m x .79 x 59.55 = 3000 x 4.186 x .45
m = 120.12 g .
