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.
The 2017 SEP IRA contribution limit is $54,000 (2016 limit is $53,000). Contributions to a SEP IRA are generally 100% tax deductible and investment earnings in a SEP IRA grow taxed deferred. Withdrawals after age 59 Â½ are taxed as ordinary income. Withdrawals prior to age 59 Â½ may incur a 10% IRS penalty as well as income taxes.