Answer:
Seafloor spreading at the mid-ocean ridge provides the mechanism for tectonic plate movement. The Earth's mantle moves through convection, showing that tectonic plates are able to glide. The location of the plates was determined by locating their boundaries, using data on the Earth's magnetic field.
Her conclusion is invalid because using sand instead of soil slows down plant growth. Fertilizer, on its own, does not 'greatly' increase the size of the plant.
The correct way to do this experiment would be to keep all other parameters same, except the fertilizer. This will give her accurate results.
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Answer: Without oceans, there would be more evaporation and more precipitation on Earth
Answer:
This means that there would be an ecological surplus, the allotted footprint of 1.9 hectares per person has been exceeded.
Explanation:
Ecological footprint measures our use and demand of nature and how much nature we have. It measures how much quantity of nature can be used to support people or an economy and it tracks this demand through an ecological accounting system.
Ecological surplus or deficit measures what is left over or how little a country's biocapacity is available. It is calculated by subtracting the country's ecological footprint per person from the country's biocapacity per person. They are both measured in global hectares (gha)