Acid causes metals to corrode
The right answer is True.
Sustainable agriculture is the application to agriculture of the principles of sustainable or sustainable development as recognized by the international community in Rio de Janeiro in June 1992. It is a system of agricultural production that aims to ensure sustainable production of food, wood and fiber respecting the ecological, economic and social limits that ensure the maintenance over time of this production.
Sustainable agriculture aims to reduce the environmental impact of the sector. It is in particular an agriculture that better protects the biodiversity, the water and the soils that are necessary for it and which uses it better through the auxiliaries of agriculture and the ecosystem services. And also by creating more per capita wealth per unit of production, on a more equitable basis. These principles are based on the recognition that natural resources are not infinite and that they must be used wisely to ensure long-term economic profitability, social well-being, and respect for the environment (all three are pillars of sustainable development).
A. older fossils are found in deeper layers of undisturbed rock strata.
Answer: C
Explanation: Most of the energy is lost as heat, the rest is used as energy for the animals. But the energy is still in the ecosystem just not in a form that is usable. So, the energy all ways remains the same. Energy can't be destroyed or created only transformed into a new form.