Author information: (1)Dr. von Hauner Childrens' Hospital, Ludwig Maximilians University, Munich, Germany. Pulmonary surfactant is a complex and highly surface active material composed of lipids and proteins which is found in the fluid lining the alveolar surface of the lungs.
You must meet several criteria to qualify for the child and dependent care credit. To qualify, you must meet all of the following: 1  You (and your spouse, if you are married filing jointly) must have earned income for the tax year.  You must be the custodial parent or main caretaker of the child or dependent.
Introduction. The child tax credit is a credit that may reduce your tax by as much as $1,000 for each of your qualifying children. The additional child tax credit is a credit you may be able to take if you are not able to claim the full amount of the child tax credit.o claim the child tax credit, you must file Form 1040 or Form 1040A. You cannot claim the child tax credit on Form 1040EZ. You must provide the name and identification number (usually a social security number) on your tax return for each qualifying child.