Which of the following is an example of population growth? Group of answer choices the average weight of Americans has increased substantially in the past decade. tropical fish have been found in more northern waters than their usual habitat. the number of people in a town has increased by 25% in the past 5 years. the number of butterflies in a region have stayed the same from 1950-2010.

the number of people in a town has increased by 25% in the past 5 years.

Explanation:

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weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.