Answer:
SODIS is a method of purifying water using clear plastic bottles and natural sunlight.
The UV rays produced by the natural light kills any bacteria, virus, or other harmful substances.
Answer:
c. relative size
Explanation:
Jason has to look down the beach meaning the sand there is furtner from him. Since objects look smaller the further they are, the size he sees it is relative to the distance he sees it from.
Thus the answer is relative size.
Answer:
4. all of the alternatives are correct
Explanation:
Criteria for determining that a behavior is habitual include that; the behavior is enacted even if the outcome has been devalued, the behavior is enacted in the absence of motivation, and the behavior is enacted even if the behavior outcome contingency is no longer operative. For a behavior to be habitual, it means that the behavior is exhibited constantly with or without motivation or stimulus, that action or behavior is now a habit.
Answer:
The waters are generally crystal-clear, with submarine features clearly visible at depths of 100 feet (30 metres).They: protect coastlines from the damaging effects of wave action and tropical storms. provide habitats and shelter for many marine organisms. are the source of nitrogen and other essential nutrients for marine food chains.
Explanation:
