After watching an advertisement for hand sanitizer on television, Ben decided to see just
how effective the advertised hand sanitizer really
was. Ben used warm water as his control. He
compared the advertised sanitizer with two
brands of hand soap. After using the three
products and the control, he cultured the
bacteria on his hands. He recorded the number
of bacterial cultures that appeared on each
culture plate. Ben's results can be seen in the
data table. Ben concluded that both brands of
soap were more effective in killing bacteria than
the advertised hand sanitizer.

What is the range of the number of bacterial cultures per plate for the experimental group?
A. 1
B. 13
C. 16
D. 28

a chair, a bed, and a toothbrush

explanation:

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.

b. climate change will cause an increase in biodiversity of all ecosystems.

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