Answer: Electromagnetic waves
Explanation: The main property of the waves is the way how they propagate or travel in medium The waves which can travel without a medium is said to travel in vacuum or air.
Charlee Darwin <span>t is credited with the idea of evolution and the theory natural selection.</span>
Answer:
A. Mostly unstaurated fatty acids
Explanation:
Fats can be both mostly saturated and unsaturated, though oils typically fall under the description of mostly unsaturated.
Answer: The European Union's most important water pollution act is called Water Framework Directive.
The demand for clean lakes and rivers, coastal beaches and groundwater by the environmental organizations and the citizens the commission made water conservation a chief priority under which the Water Framework Directive was made. The Water Framework Directive has some of key objectives like expansion of the scope of water protection for all types of water sources, water managements on the basins of rivers, ensuring proper quality standards, involvement of citizens and correct pricing etc.
