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polet [3.4K]
3 years ago
13

How does the appearance of photosynthetic plants relate to the increase in atmospheric oxygen and the decrease in carbon dioxide

Biology
2 answers:
cestrela7 [59]3 years ago
8 0
Photosynthetic plants use carbon dioxide to generate and function. Plants need energy (glucose) to survive. They exist to absorb carbon dioxide from the atmosphere. One of their end products is oxygen. Animals take in oxygen and release carbon dioxide while the plants take in carbon dioxide and release oxygen. This is balance. 
OverLord2011 [107]3 years ago
8 0

Answer:

They need to make glucose to survive so that produces oxygen.

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Calculate the weight of an object of 30 kg on Earth. 2. Calculate the weight of an object of 30000 g on Earth. 3. Calculate the
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Answer:

1. 294N

2. 294N

3. 19.6N

4. 19.6N

5. 4.9N

6. 4.9N

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Explanation:

The weight of an object is the force that gravity is having over it, and we measure it in <u>Neutowns (N), which equals Kg x m/s².</u>

To find the weight of an object, we use the formula F= m x g.

F stands for force, m for the object's mass, and g for gravity, which is the force that attracts objects to Earth, and we measure it by the acceleration that an object has during free falling.

<u>The Earth's gravity is 9.8 m/s²</u>

1. We use the formula F=m x g

F= 30kg x 9.8 m/s²

F= 294 N

2. We have to convert the 30000g into kg to use the formula

30000÷1000= 30kg

30000g equals to 30Kg, so the object's mass (m) is 30Kg.

F= m X g

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F= 2kg X 9.8 m/s²

F= 19.6 N

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2000÷1000= 2Kg

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F= 0.5 kg X 9.8 m/s²

F= 4.9 N

6.We have to convert 500g to Kg.

500g÷1000=0.5Kg

The object's mass (m) is 0.5 kg

F= m X g

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7. The gravity on the moon is different from the one on Earth. In the formula, instead of 9.8 m/s² for the gravity (g), we use 1.6 m/s².

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8. The gravity (g) on Mars is 3.7 m/s², so we have to use it in the formula where it says g to find the object's weight on Mars

F= 50Kg X 3.7m/s²

F= 185 N

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