Answer:
Notes about the evidence are given
Explanation:
- The earthquake occurs along the plate boundary of Africa and South America due to the presence of the mid-Atlantic ridges that are spreading at a fast rate. They are spreading at the rate of 3.0 cm per year.
- A large number of earthquakes and volcanic activity has been seen along the eastern side of the ridge.
- Second, the image shows the evidence of the spreading of the mid-Atlantic ridges as the Mesosaurus fossils that formed is currently 4000 meters apart today.
I think the answer is A. subsistence agriculture.<span />
Convection currents in the magma drive plate tectonics. Heat generated from the radioactive decay of elements deep in the interior of the Earth creates magma (molten rock) in the aesthenosphere.
Answer:
Explanation:
Biomass refers to the organic matter from plants and animals.
It is also a source of renewable energy which can be used to produce electricity.
Energy from biomass orginates from the process of photosynthesis where green plants manufacture food for the ecosystem using carbon dioxide and sunlight.
Biomass has the following use:
It is widely available: Biomass can easily be sourced for. It is widely abundant in the environment.
It is inexpensive: Due to its wide availability, its source materials are very cheap and lies readily in the environment when we compare this to exploration for fossil fuels and mining for uranium.
It is carbon neutral: Since biomass constitutes a part of the carbon cycle, energy from biomass does not lead to climate change. Green plants use carbondioxide to manufacture their food and it is released back to the atmosphere when biomass is tapped.
It is environmentally friendly: The use of biomass as a source of energy does not affect the environment negatively. It is a clean source of energy.
It helps to reduce amount of waste: biomass energy helps us put wastes into a very good use.
