Our results, and the morphological features of each species, are consistent with the previous findings that have described P. argentina as a xerophyte able to cope with harsh sand-dune conditions, and P. alpataco as a phreatophytic species with more mesomorphic features.
After centuries of exposure to the harsh desert climate, abrasive sands and hungry termites, many of the manuscripts are badly damaged.
In this study, locally produced materials are used in all concrete mixtures, coarse and fine aggregates are composed of harsh desert sand, free from impurities, crushed dolomite from Ataka near Seuz Canal zone, ordinary Portland cement locally produced, and tap drinking water.
Be sure to wear proper protective equipment when using harsh chemicals, sanding, and using the spray gun.
Those numbers represent the size and density of sand/glass grains on the surface of the paper, 50 grit being harsh and 220 grit being very fine.
Even so, some northerners endorse almost any government action in the harsh environment, where battling sand alone constitutes a daily struggle.
The Somalis are determined that they should go, and there is indeed no earthly reason for hanging on beyond responsibility for what is left behind.Somalia and Somaliland start off with roughly the same disadvantages; both are harsh, hot lands of sand and rock without water, known mineral wealth, industry or anything else that makes life easy.
They drew a harsh line in the sand between their professional and personal lives, and were taught to take care to not let one bleed into the other.
As Kwame Nkrumah, the first prime minster of Ghana, said "I am not African because I was born in Africa but because Africa was born in me". We have too much in common for anyone to draw such a harsh line in the sand between us.
Working conditions were harsh with the heat, sand, flies, lice and 'mosquitoes as big as sparrows, very bony and strong'.
Rodriguez and Buskin used the word "veiled" to describe it, and Purse observed, "It felt like all of the harsh edges had been sanded off".
