What theory explains how the universe was flattened

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Which of the following is not a potential result of deforestation?