B. Consumers depend on producers to make food using sunlight. This is the right option.
C. Cells
Cells make up organs, which make up organisms, which make up populations
You could put salt-crystals outside during different times of the day when the temperature drops or rises.
True.
The earth is made of several subsystems or spheres that interact to form a complex and continuously changing (dynamic) state that is termed as the earth system.
Even though the earth system is a closed system, it self regulates through the subsystems such as the water cycle and carbon cycle.
The earth system is characterized by numerous overlapping cycles in which matter is recycled over and over again. Cycles involve multiple spheres and systems interactions. Humans impact and are impacted by the cycles in various ways.
