A rocks age can be estimated using relative dating or absolute dating
They let things in and out
Answer:
This a source which energy can be extracted, used and still be transformed maybe directly or into another energy form.
Explanation:
Different energy sources can be renewable and non renewable. Fossils such as coal and crude oil are the most common sources of energy in industries and homes. Here, we can cut down fuel requirements using burners, furnaces and engines that burn the fuel more efficiently.
Alternative sources of energy include hydroelectric power, nuclear energy, wind generators and solar panels. Wood, alcohol, could also be used as alternative sources of energy. Ad these are products of photosynthesis, they are renewable.
Answer:
Environmental factors that affect plant growth include light, temperature, water, humidity, and nutrition. ... It is important to understand how these factors affect plant growth and development.
Explanation:
Answer:
The percentage of an individual genetic background that may contribute to alcohol dependency is 50%.
Explanation:
Alcohol dependency refers to a chronic disease in which the affected individual has an uncontrollable urge for alcoholic drinks. There are many factors that can cause one to depend on alcohol and one's genetic background is one of them.
Recently, researchers have been able to identify a specific gene that is responsible for development of alcoholic dependency. Before now, scientific studies have been able to proof that children born by alcoholic parents have high tendency of becoming alcoholic adults. The percentage of genetic heritage that is responsible for alcoholic use is as high as 50%