Astronomers use the distancebetween Earth and sun, which is 93 million miles, as a new unit of measure called the Astronomical Unit. It is defined to be exactly 1.00 for the Earth-Sun orbit distance, and we call this distance 1.00 AUs.
The universe focuses on system
Sorry I am a week late in answering this but it helps people later. The answer I got was this:
Groundwater is an important source of freshwater, partly because it accounts for approximately 30% of the Earth's freshwater.
I know this is a little late but I hope it helps you later on.
Answer:
Because volvox can photosynthesise
Explanation:
Volvox is a multicellular algae. They grow in spherical colonies.
Its cells contain chloroplasts meaning it can photosynthesise. This means it can use light energy from the sun to synthesise its own food. Therefore, it doesn't need to capture food from the environment.
