Answer:
both A and B
Explanation:
Together, the number of protons and the number of neutrons determine an element's mass number.
By cleaning up parks, forests, beaches, etc. you help protect the natural habitat of a variety of native species to the area
D. Koch
Hope I helped; please mark brainiest if correct :)
The answer is higher survival rate
Nearly all of the energy that drives an ecosystem comes from the sun in the form of solar energy. Solar energy enters the ecosystem through a process of photosynthesis that is the starting point for all forms of plant and animal life on the planet. The sun and solar energy are the beginning source of energy for almost all functioning ecosystems and organisms on the planet.
