Answer:
the first president of USA was Abraham Lincoln
Answer:
3) Conventional methods have a bad impact on environment because they usually don't consider the quality of the soil. Monoculture, known as the plantation of one single crop for a long time and in a large area, is very harmful for the land because it takes all the nutrients from the soil, usually making it useless for future crops.
For pesticides and fertilizers, is important to understand that it doesn't only affect the plants that you want to grow, but all the nature living around the plantation. It affects the wild plants, the non-harmful insects and animals, and of course, it pollutes the soil and any water that is nearby. It also polutes the air.
The GMOS also threathen the lives of all animals and plants around the plantation. It could change the characteristics of the soil microbial population, that carries nitrogen and other essential elements. And one of the most known, it could affect human beings by eating the genetically modified food or by breathing air contamined with the GMO products.
4) To improve your health and help the environment, one of the main things you have to do is keep an organic diet. Usually organic produts are a little more expensier and sometimes they don't last as long as the regular ones, but it is a good trade when it counts to your health and estimulates farmers to keep an organic plantation to help the environment. Try keeping an eye on the label, if it says non GMO and organic, it is better for you. Usually what helps the environment and whats healthier for us goes together, because usually what comes straight from nature (if its not poisonous or anything like that) is whats best for us.
Early scientific attempts st determining Earth's age gave a number that was around 4.6 billion years old.
<h3>Radiometric dating methods</h3>
The age of rocks can be most determined by radiometric dating.
This process of radiometric dating makes use of two different isotopes of a sample.
It is known that Radioactive isotopes break down within a known amount of time and this enables geologists to determine the age of a sample with the aid of equipment like thermal ionization mass spectrometer.
Learn more about Radiometric dating at
Answer:
A. Where oceanic crust slides under continental crust.
Explanation:
Answer:
49 or 50
Explanation:
It depends on who's saying.
The National Geographic Society claims Hawaii (in the Pacific Ocean) is considered part of North America.
The World Atlas identifies Hawaii as part of the continent of Oceania, not North America.
