Explanation:
Wind energy is one of the sources of renewable sources of energy that is environmentally friendly.
It uses wind power to generate other forms of energy mostly electricity.
Some of the drawbacks are:
- Wind turbines pose serious threat to wildlife. It is common place to see dead birds in areas where wind power is being harnessed.
- The quantity fluctuates from time to time. Since wind is an element of weather, it is not always in regular supply as desired.
- The cost of constructing wind turbines can be very high a times.
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Non-renewable sources of energy brainly.com/question/3386515
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Animals need to consume food in order to obtain energy (just like humans.
Answer:
The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. In many ways, respiration is the opposite of photosynthesis. In the natural environment, plants produce their own food to survive.As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called "aerobic respiration".
In plants, there are two types of respiration: dark respiration and photo respiration. The first kind occurs in the presence or absence of light, while the second occurs exclusively in the presence of light.<em>Plant respiration occurs 24 hours per day</em>, but <em>night respiration is more evident since the photosynthesis process ceases.</em> During the night, it is very important that the <em>temperature is cooler than during the day</em> because plants can experience stress. Imagine a runner in a marathon.
roots respire too!
One of the functions of the substrate is <em>to serve as a site for air exchange between the root zone and atmosphere</em>. In other words, <em>roots breathe oxygen like we do</em>. Different plants have different oxygen requirements for their root systems.
For example,
<em><u>the root system of a poinsettia requires a lot of oxygen, so it is best to use a substrate with high air porosity, while hostas can live well in a substrate with a high water holding capacity. </u></em>
Elements are pure substances made up of atoms
