Answer:
A binary star is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems. These systems, especially when more distant, often appear to the unaided eye as a single point of light, and are then revealed as multiple by other means.
In the case of fish if you polute plastic into the ocean the water will break up the plastic and the fish will confuse the little particles of plastic as food and will try to eat it and can die
Answer:A
Explanation: more resources are usually need it for the initial set up and planning of traditional large scale agriculture techniques.
Answer:
sleep, mental fatigue/stress levels, nutrition, hydration, frequency and type of training loads, alcohol intake and methods of warm up pre exercise and cool down post exercise.
Explanation:
B) they stay the same for many generations
