Answer:
The first trophic level
Explanation:
The most important trophic level in the ecosystem is the the first trophic level. This trophic level is dominated by the plants the furnishes the ecosystem with food.
- The ecosystem is made up of living and non - living components.
- To being with, the trophic levels are the feeding levels which corresponds with the energy levels.
- Now, the most important of all is the first trophic level
- It is made up of plants which are called producers.
- They use inorganic matter to produce food for the whole ecosystem.
- This food is the source of energy for all living activities in the system.
"Deforestation is the permanent destruction of forests in order to make the land available for other uses. An estimated 18 million acres (7.3 million hectares) of forest, which is roughly the size of the country of Panama, are lost each year, according to the United Nations' Food and Agriculture Organization (FAO)"
The conversion of forests into agricultural plantations is a major cause of deforestation. The increase in global demand for commodities, such as palm oil and soybeans, are driving industrial-scale producers to clear forests at an alarming rate. Indonesia, the largest producer of palm oil, was named the “Fastest Forest Destroyer,” in the 2008 Guinness World Records. Even when efforts are made to replenish barren plantations, the depleted soil is not able to produce the same biodiversity it once was."
Forest clearing for livestock ranching is another contributor of deforestation. Since 1990, Brazil, a top exporter of beef, has lost an area of forest that is three-fourths the size of Texas. A strong global demand for beef, supported by governments such as in Brazil, is expanding this kind of deforestation.
A behavior must affect an organisms fitness and have a genetic basis.
Answer:
Left amount of Polonium-210 after 115 days will be 4.5927 microgram
Explanation:
We have given initial mass of Polonium-210 
Decay rate x= 0.502% = 0.00502
Time t = 115 days
We have to find the left amount of Polonium -210 after 115 days
We know that left amount is given by
So left amount of Polonium-210 after 115 days will be 4.5927 microgram
