How much heat is needed to raise the temperature of 1kg iron from 25 c
How much

80 pts the type of cloud shown here may produce heavy rainfall. this type of cloud most likely occurs in an area of the sub-saharan that is a) often dry. b) often wet. c) very windy. d) usually cool.

Depending on the organism the number of in a cell may change

Nucleic acid certain protein cell membranes certain carbohydrates