Answer:
D
Explanation:
D is the only option where the cause of the pollution is not something man-made.
B . its a 50 50 chance because the traits are stronger
It depends on your teacher, it should be A. It could be B if that’s what your teacher wants but I would go with A.
Answer:
True
Explanation:
Sound waves need a medium to travel through. That's why you cant hear sound in space. But you can see light in space and the sun heats up our planet, so yes, light doesnt need a medium to travel through.
<span>Definition of Compound. ... The type of bonds holding elements together in a compound can vary: two common types are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios. Example 1: Pure water is a compound made from two elements - hydrogen and oxygen.</span>