Answer:
<u><em>Astronomical unit (AU, or au), a unit of length effectively equal to the average, or mean, distance between Earth and the Sun, defined as 149,597,870.7 km (92,955,807.3 miles).</em></u>
Explanation:
The astronomical unit is a unit of length, roughly the distance from Earth to the Sun and equal to about 150 million kilometres or ~8 light minutes. The actual distance varies by about 3% as Earth orbits the Sun, from a maximum to a minimum and back again once each year.
D. living things as a reservoir
Answer:
The cell membrane
Explanation:
The cell membrane allows or denies matter from entering the cell while also making sure the inside contents do not escape. This also can be called the plasma membrane.
If gravity is one third on mars then weight also one third on mars