There are many of them, but the majority come from using fossil fuels to create energy for cars, factories, etc. It releases extra carbon dioxide into the atmosphere which can cause the Earth to gain extra heat.
The statement 'the substance secreted by the mucous membranes is called mucus' is TRUE. It is a secretion that helps to maintain the health of epithelial tissues.
<h3>What is mucus?</h3>
Mucus is a type of secretion that helps to maintain the overall health of the epithelial tissues by removing harmful particles.
The harmful particles removed by the mucus include waste particles and pathogenic microorganisms (e.g., bacteria and viruses).
Mucus secreted by the mucous membrane functions as a barrier for the immune system that helps to maintain a healthy state.
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brainly.com/question/10238566
Answer:
They can teach you the lessons they learned to you. The times they went through, the hard times can be avoided by learning from them.
Explanation:
