It is A
Since radiant energy is energy that travels through waves, <span>particularly electromagnetic radiation (</span>heat or x-rays)<span>, then it has to be radiant energy. Mechanical energy is used to move objects such as that of a turbine.</span>
You're probably talking about the cubic crystal structure of alpha polonium, the only element known to exist that way. Each alpha polonium crystal has 27 atoms in a three by three arrangement. Alpha polonium is an allotrope of the element polonium. Allotropes are physical forms of a single element. An example is carbon, which exists as diamond and graphite.
Answer:
There are three major types of environmental worldviews: anthropocentric (human-centered), biocentric (life-centered), or ecocentric (earth-centered).
Explanation:
The nitrogen fixation is a very important process because it is the principal source of nitrogen in the marine environment for photosynthetic plants. Nitrogen is a growth limiting nutrient, that is very important for the growth of photosynthetic plants. During the process of nitrogen fixation, nitrogen is absorbed from the atmosphere and it is fixed by nitrogen fixing organisms.