English, 13.07.2019 19:00 alialarma

Plants produce oxygen and animals and humans use oxygen. about 21 percent of earth’s atmosphere is oxygen, enough for all living creatures. for many years, plants and animals have kept a bargain. animals breathe the oxygen produced by plants. at the same time, plants use the carbon dioxide that animals exhale. they mix it with water and sunlight to produce a sugar called glucose. as it turns out, glucose is the basic energy source for both plants and animals. the waste produced by this process is oxygen. the bargain between plants and animals has been in the right balance for many millions of years. if we humans are smart enough not to upset that balance too much, all life on earth will benefit from it for millions of years to come. plants are able to use water, carbon dioxide, and sunlight to produce glucose plus oxygen. what's the effect of this for animals? what might be a cause that would break the bargain between plants and animals?

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I don't know if I would call it a bargain. Ocean phytoplankton, produce 50 to 85% of the world's Oxygen as a by product of photosynthesis. With trees and shrubs producing the other half. This is where the food chain begins. These plants covert the light of the sun into engery we all use in the form of sugars our animal bodies need for energy and life. Animals throughout the food chain including us really on those plants for food and oxygen. Human activity is the biggest danger to this. If humans continue to pollute the oceans by releasing carbon into the atmosphere the planet will warm and the oceans will become too acidic for these organisms to thrive. Between desertification, deforestation, and pollution there might not be much of a bargain left.

Answer from: maliyah7516

A good answer should contain the following:

Animals need the oxygen to breathe, and glucose is the basic energy source for animals.

If humans or animals destroy too many plants, there may not be enough oxygen for animals.

Explanation:

Answer from: Quest

Ok uhh exactly why is the question here

Answer from: Quest

halloween: it’s my favorite holiday

halloween is one of the best holidays for some people but it can also be scary for others. halloween is a holiday where some people believe spirits and soul of the dead that haven’t moved on will come back again to haunt the lives of the living. this is why many people dress up in costumes to disguise themselves as someone else. some people like us wish to be something that we would benefit in life from. like angels of god. some dress up just to be unique from the others. many families stay home and watch scary movies and others dress in their tremendous costumes and knock on each door to either get a trick or a treat.

personally everybody loves halloween because i could be someone else one day out of the year. it’s fun and entertaining, especially for kids. halloween also has a lot of history. many myths and beliefs say that witches and warlocks are alive and living among us. is this a trick or a truthful treat?

halloween may have secrets and scary things behind the door but we love halloween and it is beautiful to see how happy children are when each door opens full of treats and goodies. it makes everyone happy. happy halloween day.

happy to .

pls mark as brainliest.

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