A structure formed from molecules that combine to make up cells is called an atom.
Answer:
T3 (tri-iodothyronine) and T4 (thyroxine).
Explanation:
Answer:
The average density of deer in 1923 was 1 deer per 8 acres
Explanation:
Given -
In 1923, the population of deer rose to 
The density of any species is equal to total population divided by total area of the land in which this population is residing.
Where d represents the density
P represents the population and
A represents the area of land
Substituting the given values in above equation, we get -
Thus, the average density of deer in 1923 was 1 deer per 8 acres
Scientists consider CARBON DIOXIDE to be the main engine of the atmospheric warming related to greenhouse gases. Global atmospheric carbon dioxide levels have been rising steadily since the Industrial Revolution which marks the beginning of our extensive use of fossil fuels. Fossil fuel use puts carbon dioxide gas into the atmosphere faster than natural systems are able to use it.
Answer:
Option (1) and (3)
Explanation:
The ocean covers a large portion of earth and the temperature of the ocean rises due to the high absorption of heat. This is because of the higher amount of incoming solar radiation and the increasing green house gases in the atmosphere of the earth.
This increasing temperature of the ocean has certain negative effects.
Due to the increasing ocean temperature, the ocean water will become warm that will enhance the temperature of the polar water, as a result of which the glaciers and ice caps of the polar region will melt.
The increasing ocean water temperature will lead to the evaporation of water into the atmosphere, which will eventually cause rainfall. This will cause flooding in the low-elevated coastal areas. There occurs increasing frequency of major storms.
Thus, the correct answers are options (1) and (3).
