Desert climate (in the Koeppen kÃ¶ppen climate BWh bwh BWk, bwk sometimes BWn), bwn also known as an arid, climate is a climate that does not meet the criteria to be classified as a polar, climate and in which precipitation is too low to sustain any vegetation at, all or at most a very scanty. shrub
Roth IRA Contribution Eligibility. Anyone with earned income that falls under the above guidelines can use a Roth IRA to save for retirement. How much you can save is dependent upon your age. If you under the age of 50 years old you can contribute $5,500 toward retirement in a Roth IRA.
The maximum annual direct contribution to a Roth IRA is $5,500 unless you are age 50 or over in which case it is $6,500. You may make a contribution anytime from January 1 to the tax filing deadline (April 17 in 2017).