Aweather map shows red semicircles on a line. what type of weather would one expect?
a warm front brings drizzly weather.
a cold front can cause heavy rain, thunder, and lightning.
a stationary front may produce rainy or snowy weather for several days.
an occluded front can cause light to heavy precipitation that may last several days.

how to make a simple air condition

a) the particles of the chair are strongly held together.

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally