Everything has mass. The mass of something never changes.
Mass is measured using grams.
Air is not that heavy, but it certainly has mass because it takes up space.
For every one liter of air, their is 1.19 grams.
2009 is the year that the population of zebras and lions is the highest
The correct answer is:
A. Photosynthetic pigments absorb energy from light.

Answer:
It will be C( Magnesium absorbs red and blue light but reflects green light)
Answer:
u have to find the circumference diameter and radius of the two balls
Explanation: