The element selenium has the atomic number of 34 while aluminium has atomic number of 13. The electronic configuration of selenium is 2, 8,18, 6 while that of aluminium is 2, 8, 3. This means that, selenium has six electrons in its outermost shell, this allows selenium to have variety of valence numbers. Aluminium on the other hand has only three electrons in its outermost shell. Aluminium will be more ready than selenium to give away its valence electrons in order to attain the octet form. Selenium belongs to the group VIA while aluminium belongs to group IIIA. The group that an element belongs to determine the number of electron in its outermost shell.<span />
TAGCCAT is the correct answer
Answer:
d. Very small cells are the best adapted for nutrient exchange.
Explanation:
The need to be able to pass nutrients and other substances into and out of the cell limits how big cells can get. The larger a cell is, the more difficult it is for nutrients and gases to move in and out of the cell because the volume is larger than the surface area. Smaller cells can exchange nutrients with the external environment more quickly.
Any illness arising due to spoilage of food that is due to contaminated food, viruses, pathogenic bacteria or parasites that contaminates food is known as food-borne illness.
The large quantity of food can be chilled or heated quickly by dividing and placing the food into small and shallow containers.
Answer:
The primary difference between weathering and erosion is that weathering occurs in place whereas erosion involves movement to a new location. Both are caused by similar factors of wind, water, ice, temperature, and even biological action. They can also occur together.
Explanation: