Answer:
All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1600 years and decays into radon gas (specifically the isotope radon-222).
Explanation:
All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1600 years and decays into radon gas (specifically the isotope radon-222).
The answer is A. Energy first enters an ecosystem through light energy that is absorbed through photo-synthesizers
In the following terms
above, the best terms that matches the following are:
RNA - > 2. Nucleic
Acid =RNA is matched to Nucleic Acid
Sucrose - > 3. Carbohydrates
= Sucrose is matched to Carbohydrates
Steroids - > 4. Proteins
= Steroids is matched to Proteins
<span>Toxins - > 1. Lipids
= Toxins is matched to Lipids</span>
Answer:
a. occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated
Explanation:
Diffusion is the net migration of particles such as molecules
ions, or atom from a region where it is highly concentrated to a lower concentration region. Diffusion is initiated by a concentration gradient. An instance is the existence of a concentration of particles of perfume at one end of a room which eventually spreads across the room.
Answer:
18
Explanation:
6 (weights) x 3 (distance) = moment
