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The removal of vegetation causes the desertification and erosion of soil. The roots of the plants that are inside the soil create a sort of net that prevents the material to be dragged by the water from the rain. They also absorb any excess water that can weaken the soil structure. If vegetation is removed from the soil, the nutrients can be dragged by water currents and slowly the desertification will occur.
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The advantage of using a solar cooker is that it is Eco-friendly and the disadvantage is that it can be used only under certain conditions.
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Explanation:</u></h3>
A solar cooker is used for cooking food without having to use electricity or gas. Instead, the appliance uses heat from the sun to cook food. It is used widely in by people who travel in remote areas or go on trips. But the appliance has limitations of its own too.
ADVANTAGES
- Using it is friendly to the environment
- It can be easily assembled without expert assistance
- No compromise on the quality and taste of foo
DISADVANTAGES
- Requires sun to function and prepare food
- Cannot function in winters or monsoon when the sun isn't present
- Does not retain heat as efficiently and quickly as compared to other cooking appliances
Ignoring air resistance, the Kinetic energy before hitting the ground will be equal to the potential energy of the Piton at the top of the rock.
So we have 1/2 MV^2 = MGH
V^2 = 2GH
V = âš2GH
V = âš( 2 * 9.8 * 325)
V = âš 6370
V = 79.81 m/s
The boy's momentum is 160 kg*m/s north.
The formula of momentum is p = mv, where p is momentum.
p = 40 kg * 4m/s north
p =160 kg*m/s north<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.</span>
