Cyanobacteria were important for Earth's early atmosphere because they produce oxygen.
<u>Explanation</u>:
Cyanobacteria is a Phylum consists of the free living bacteria and endosymbiosis. Cyanobacteria is also called blue green algae which obtain energy through oxygenic photosynthesis and releases Oxygen gas in the atmosphere. Cyanobacteria is responsible for the early oxygen production in environment which changed the early reducing atmosphere of the earth into the oxidizing atmosphere that causes the event of great oxygenation that is rusting of the earth. During this period most of the anaerobes extinct or evolve to live as a parasite or symbol on in other hosts.
During the summer and autumn
<em><u>Trees </u></em><em><u>provide </u></em><em><u>socio-economic benefits</u></em><em><u> by creating a friendly environment that lures more customers to the shopping areas they are found.</u></em>
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Trees are very important to our environment for the following reasons:
- They release oxygen during photosynthesis, thereby producing oxygen for humans
- Trees take in carbon dioxide during photosynthesis, thereby purifying the atmosphere and limiting greenhouse effect.
- They also beautify the environment
- Trees serve as shades for humans
All these importance of trees is what will definitely lure people to go to shopping areas that have trees planted in them.
This means that, trees boost sales of businesses wherever they are planted. In this way, we can state that because trees create a friendly environment, people are lured where trees are and they spend more money there, and so therefore, it serves as social or economic benefit.
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Answer:
B. a decrease in vegetation.
Explanation:
For exclusion:
Cannot increase the vegetation.
And increase the soil erosion.
And decrease the quality of air.
