<span>A warm front is the boundary between a warm air mass and a cold air mass it is overtaking. So a cold front would be the opposite.
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Answer:
A, C and D
Explanation:
It creates no ionic bonds because it would need certain changes to it.
Im not so sure about E because the configurations are very similar.
And A seems to make sense because its essential to life itself.
The activation energy stands as a sort of a barrier between reactants and products and is shown by the letter E.
<h3>What is activation energy?</h3>
The activation energy is the energy that must be supplied in order for a reaction to proceed forward.
The activation energy stands as a sort of a barrier between reactants and products and is shown by the letter E in a diagram of an enzyme controlled reaction.
Enzymes tend to decrease the activation energy by providing an alternative path for the reaction.
Learn more about activation energy:brainly.com/question/11334504
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Hops
Hops are also used in brewing for their antibacterial effect over less desirable microorganisms and for purported benefits including balancing the sweetness of the malt with bitterness and a variety of flavours and aromas.
The correct answer is - D. all of these.
The collaboration between different types of organisms in nature is not something weird, it actually happens quite a lot. When we have a situation where two or more organisms have developed a relationship from which both of them benefit, we are talking about mutualistic symbiotic relationship.
The flowers and the pollinating animals are perfect example of this type of relationship. The flowers develop certain color or smell that will attract certain type of the pollinators. They will be attracted by the flower and pollinate it. The flower will become fertilized in that way, while the animal will get food source. Also, the pollinating animal will disperse the pollen in the surrounding area.