Explanation:
When temperature of air is increased, the air molecules gain more kinetic energy hence vibrate at a higher rate which in turn leads to increase in pressure and vice versa
The Sumerian religion was majorly practices by the people of Sumer. The sumers were the first literate civilization of Mesopotamia. They had a strong belief that the universe that had been formed is due to a series of cosmic births. Their deities included Enlil, Utu, Enki etc.
Whereas the Mayans believed in several aspects of rituals, astronomy and nature. They were known for their religious calendars. Their deities mainly were nature Gods like the Sun , Moon, Corn/Maize, Rains, etc.
The seven primary mental abilities in Thrustone's model were verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perpetual speed,and reasoning.
Answer:
Cellulose
Explanation:
Others are petroleum derivatives
The time it takes for 1g of strontium-90 to decay to 250 mg is; 57.6 years
<h3>What is the half life of an element?</h3>
The formula for half life is;
A(t) = A₀ * (¹/₂)^(t/t_1/2)
Where;
A(t) is amount left after t years
A₀ the initial quantity of the substance that will undergo decay;
t_1/2 is the half-life of the decaying quantity.
We are given;
t_1/2 = 28.8 years
A₀ = 1 g
A(t) = 250 mg = 0.25 g
Thus;
0.25 = 1 * (¹/₂)^(t/28.8)
log 0.25 = (t/28.8) log (1/2)
-0.60206 = (t/28.8) * -0.3010
t = 2 * 28.8
t = 57.6 years
Read more about half life at; brainly.com/question/11152793
