The correct answer is B) Prairies wind erosion usually happen in deserts and coastal sand dunes and beaches, certain land conditions will cause wind erosion in agricultural areas.
It is one of the most powerful mood-altering chemicals. It was discovered in 1938 and is made from lysergic acid, which is found in ergot, a fungus that grows on rye and other grains.
Answer: nitrogen
, CALCIUM
, nitrogen
, Carbon-14
, Mercury
, Boron
Explanation:
A. nitrogen
The atomic number of nitrogen is 7. How many protons, neutrons, and electrons make up an atom of nitrogen-15? Socratic.
B. CALCIUM
CALCIUM - I have 20 neutrons and am found in your teeth and bones
C. nitrogen
The atomic number of nitrogen is 7. How many protons, neutrons, and electrons make up an atom of nitrogen-15? Socratic.
D. Carbon-14
Carbon-14 atoms have two extra neutrons, giving them a total of 8 neutrons. Carbon-14 has an atomic mass of 14 ( = 6 protons + 8 neutrons).
E. Mercury
Mercury is a chemical element with symbol Hg and atomic number 80.
F. Boron group element, any of the six chemical elements constituting Group 13 (IIIa) of the periodic table. The elements are boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and nihonium (Nh).
Answer: The correct answer is black because the product of its side and mass is lower.
Explanation: Density of a substance is defined as the mount of matter that can be stored in a given volume.
Mathematically,

As, density is inversely proportional to the volume of the substance.
The substance will be more denser if it has less volume and it will be less denser if the volume is more.
We are given two cubes having different sides.
Volume of the cube is calculated by using the formula:

where, a = side of the cube.
Black: The side of this cube is 2 and volume will be =
Yellow: The side of this cube is 3 and volume will be =
As, the volume of black cube is less. So, this cube will be more denser.
Density of black cube: 
Density of Yellow Cube: 
Hence, black cube will be more denser because the product of its side and mass is lower.
C i think . Hope this helps