Answer:
Climate change
Explanation:
A group of change in climate system that is persistent for up to 30 years is called Climate change
The gradient between the two places is 0.1
Gradient (slope) is the ratio of change in vertical distance to change in horizontal distance. It is given by:
Gradient = vertical distance / horizontal distance
Given that the horizontal distance is 1000m and vertical distance (height) is 100 m, hence:
Gradient = vertical distance / horizontal distance
Gradient = 100 m / 1000 m
Gradient = 0.1
The gradient between the two places is 0.1
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COLLISION
Surface tension is a phenomenon where liquid molecules resist an external force because if the cohesive forces between them. Neighboring molecules share the cohesive forces with the surface exhibiting stronger bonds (than below the surface). Floating needle and small insects walking on water are examples of surface tension. A collision bumps the molecules and crashes through the “film” of the surface, breaking the tension.
