It’s the source of all the energy from all the stars ... until their fuel is used up
These are some ways how scientists and engineers develop, use and refine models.
1. Imagine. They have to know what exactly trying to model. They have to imagine and brainstorm what are the things to be considered.
2. Reason. Next, they need to answer the questions brought from their brainstorming. They need to be able to reason out.
3. Calculate and Predict. Once they know it, that's the time they can start modelling and calculate - and predict.
C 50%
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Answer:
Option B
Explanation:
An economics footprint can be described as a measure of biological productivity.
Ecological footprints show a comparison of the rapidness of our resources consumption and waste generation to the rapidness of natural absorbing these wastes and also including our carbon emission.
Thus, one of the characteristics of ecological footprints is a measure of our biological productivity.
The answer are plants im sure
