Damage is caused to an ecosystem by adding fertilizer because some of the substances to the fertilizer is toxic or create bad reactions.
Answer:
As objects move around over time, the energy associated with them—e.g., kinetic, gravitational potential, heat—might change forms, but if energy is conserved, then the total will remain the same. Conservation of energy applies only to isolated systems.
Explanation:
Answer:
It can lead to melanoma or a time of skin cancer.
Explanation:
This is because UV radiation in sunlight can destroy the DNA by destroying the base pairing. UV light will cause two Thymine that are very closer to each other to join together to produce dimer. After which, The melanin-assisted process form lesions that is popularly called cylobutane pyrimidine dimers in DNA, which can result in mutations that cause melanoma which is a form of skin cancer
It is an example of a withdrawal reflex.
The purpose of the Open Door Policy was to collaborate with other nations to maintain a common price level for free trade in China. The Open Door policy started in 1899. The correct answer is B.
