True. Greenhouse gases are composed of many molecular components that provide and are necessary for life to still exist on earth. For example, the carbon dioxide and the others alike. However, when these exceed the necessary level and amount in the atmosphere, they cause tremendous increase in temperature.
Answer: In an ionic bond the valence electrons are transferred from the metal only to the neighboring nonmetal, but in metallic bonding the valence electrons of each atom/ion are free to move or float around within the entire metal solid.
Explanation:
Answer:
C.
Explanation:
Strictly speaking, the only type of reproduction in Paramecium is asexual binary fission in which a fully grown organism divides into two daughter cells. ... Autogamy (self-fertilization) is a similar process that occurs in one organism.
Answer:
equivalent resistance = R1R2/R1+R2
= 30/13 ohm
V = IR
= 5×30/13
V = 150/13 ohm