Answer:
Particles move from one end of the spoon to the other
Explanation:
Conduction-happens when heat moves from one object to another through direct contact
Radiation-happens when energy ,such as heat, moves in waves between one object and another
Convection-happens when matter carries heat from one place to another
Answer:
BTB respond to the presence of carbondioxide by changing color.
Explanation:
Bromthymol blue is a chemical indicator dye that changes it color to yellow in the presence of an acid. It respond in the presence of carbondioxide and form carbonic acid, therefore lowering the pH. It becomes blue if the pH is greater than 7.6, it is green if the pH is between 6-7.6 and yellow if the pH is less than 6.
Answer:
b. tropical forests
Explanation:
Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.