1) A. Biological
2) D. Model
3) B. Cold
Answer:
6. Convection 7. conduction 8.Convection Hope this helps
Explanation:
Answer:
What is a controlled experiment? This is when a hypothesis is scientifically tested. In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled.
Explanation:
Hope it helps
Coltan is short for columbite-tantalite, a dull metallic ore. When refined, coltan becomes a heat resistant powder.
