Chloroplast: Photosynthesis. In photosynthesis, the sun's solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are used to produce glucose, oxygen, and water.
SEP IRA Contribution Limits 2013. You can contribute up to 25% of your total salary or 20% of your adjusted annual income to a SEP IRA, up to a limit of $51,000 in tax year 2013. This is almost twice the limit for 401(k) investors.
SEP-IRAs allow sole proprietors to make contributions to the plan as an employer rather than as just an employee. Even though you might just be a one-person freelancer, you can still have a SEP-IRA.or example, as of 2013, you can't deduct any of your traditional IRA contribution if you also have a SEP and your MAGI exceeds $69,000. If you're married filing jointly, the limit goes up to $115,000.