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14.03.2020 •
Mathematics
1. Which influences both chemical weathering and mechanical weathering?
A.wind
B.tectonic plates
C.plants
D.iron
2. Which is a cause of chemical weathering?
A.gravity
B.wind
C.sunlight
D.acids
3. Which phrase best defines erosion?
A. cementing bits of rock together
B. moving bits of rock from place to place
C. chemically breaking rocks apart
D. physically breaking rocks apart
4. How does solid rock become soil?
A. It breaks down and changes into liquid.
B. It falls apart and combines with particles in the air.
C. It breaks down and combines with water, air, and organic matter.
D. It splits apart and combines with plant roots.
5. Which is made by weathering?
A. ash
B. magma
C. minerals
D. sediments
Solved
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Ответ:
1. B 2. A
Step-by-step explanation:
BRAINLIEST!!!
Ответ:
Step-by-step explanation:
A positive parabola is one that has a + sign out front or no sign at all (and the positive is understood). A positive parabola opens like a cup with a bottom. Therefore, the positive parabola has a min value. A negative parabola opens upside down, like a mountain with a peak. Therefore, the negative parabola has a max value.