Answer:
Explanation:
Clean energy are renewable energy. This are energy from natural sources that are renewed without extra cost. Sun, wind, water are examples of renewable natural resources that helps generate clean energy.
The energy are refer to as clean because, they do not lead to any deposit of gasses that can affect the environment leading to environmental pollution. They have little or no side effects, no combustions or release of gases that are toxic or can deplete the environment as in the case of non- renewable energy.
Answer:
The correct otion is d.
Reason:
Primordial soup model was presented to explain the surface of earth in its prehistoric era.
<span>Apart from the plants and algae which are well-known to be able to perform photosynthesis, other organisms capable of doing so are some specific species of bacteria especially those which contain the green pigments called chlorophyll necessary for photosynthesis. These bacteria are also capable of absorbing carbon dioxide.</span><span />
Answer:
The G-note's wavelength is longer.
Explanation:
As we know that
The relationship between frequency, wavelength and the speed given as
Speed = Frequency x Wavelength
V= f λ
For constant speed, if wavelength increase then the frequency of the sound get reduce.
The wavelength of the A-note sound waves is smaller than the G -notes sound waves.
Therefore the answer of the given question will be A.
