Answer:
stress and faults
Explanation:
Plate movements on Earth’s crust create stress .
This adds energy to the crust, which then bends and breaks, forming ⇒ faults.
I might be wrong
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Around 1800 (plus or minus about 5 years) is when it was estimated that the world's population had reached 1 billion.
Answer:
The sun, or abiotic factors
Explanation:
Primary producers are organisms that make their own food, such as plants. They do this through photosynthesis, which requires sunlight, water, and carbon dioxide.