Question 10 (2 points) After completing 10 years of experimentation, a scientist reports a new scientific theory explaining the movement of sand on beaches. How do you know that this information is valid? (2 points)

a
There were too few years of data.

b
The initial hypothesis was incorrect.

c
The problem was not important enough.

d
Theories develop through repeated experimentation.

20 brainliest for whoever answers correctly and answers all choose the statements that accurately describe china's "one child policy." china's "one child policy" began as soon as the communists came to power. the "one child policy" was meant to keep the population from reaching 700 million. the "one child policy" was meant to slow china's population growth. the "one child policy" began as a result of the country's war with japan. some people were allowed to have more than one child. the "one child policy" began in 1979. the "one child policy" was most enforced in urban areas. the "one child policy" ended at the start of 2016. china's population is current just under 1 billion people.

Plants can have a positive and negative effect on the rate of weathering

Which ofbthe following is a characteristic shared by both brazil and mexico