Uranium-238 - 4.46 billion years
Uranium-235 - 704 million years
V2 = 250 ml
Explanation:
Given:
P1 = 0.99 atm. V1 = 240 ml
P2 = 0.951 atm. V2 = ?
We can use Boyle's law to solve for V2
P1V1 = P2V2
V2 = (P1/P2)V1
= (0.99 atm/0.951 atm)(240 ml)
= 250. ml
Answer:
Carbon monoxide + hydrogen → methanol
Explanation:
The given options are:
Carbon monoxide + methanol → hydrogen
It is incorrect because this word equation state that carbon monoxide and methanol react to form hydrogen.
Methanol → Carbon monoxide + hydrogen
It is incorrect because this word equation state that methanol form Carbon monoxide and hydrogen.
Carbon monoxide + hydrogen → methanol
This is correct because this stated that carbon monoxide and hydrogen react to form methanol.
Methanol + hydrogen → carbon dioxide
This is incorrect because this word equation state that methanol and hydrogen form Carbon dioxide.
Answer: Cells contain chromosomes which are made up of genes. Genes are made up of tightly wound strands of DNA.
Explanation:
A DNA (Deoxyribonucleic acid ) is a double-helix structure which carries the genetic information. Gene is a segment of DNA that carries basic information/instruction for growth and development. It is a basic unit of heredity that passes from parents to offspring. Chromosomes contain genes. Chromosomes are found in cells.
Thus, a cell contains chromosomes which as genes. A gene is a segment of DNA.
Urban development has been linked to many environmental problems, including air pollution, water pollution, and loss of wildlife habitat. Urban runoff often contains nutrients, sediment and toxic contaminants, and can cause not only water pollution but also large variation in stream flow and temperatures.