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.
If you're an employee of a company that offers a SEP IRA, your contributions count toward your traditional IRA contribution limit rather than the limit for defined contribution plans. For example, as of 2013, you can contribute up to $6,500 if you're 50 or older, or $5,500 if you're younger than 50.