. Which of the following investigations would be most helpful in allowing students to investigate the process of convection?

A. Students will crack open eggs on the sidewalk outside of their school at various times during the day. Students observe the changes in the egg color over a time of 5 minutes.

B. Students place yellow hot water on one side of a container and blue cold water on the other. Students then release a divider that separates the two sides and observe how the two types of water mix.

C. Students will place rods made of various materials on hot plates. Students place one end of the rod on the hot plate and record the temperature of the other end of the rod over a period of three minutes.

D. Students place digital thermometers at various distances from a heat lamp. Students then record the temperature of the air at each distance on their data table.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

a- all cells come from pre-existing cells

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.