The Long Side Of Deserts

This report, will looked at the history of arid zone cropping in Australia and other countries such as Africa. It will also look at some of the crops grown in the arid zone environment and some of the factors effecting the growth

Photosynthesis is the conversion of light energy to chemical energy into sugars. It is the process in plants that uses carbon dioxide, water, and sunlight from its surroundings and releases oxygen as a byproduct (6H2O+6CO2+light energy -> C6H12O6+6O2). Photosynthesis is required for plants because they are autotrophs, organisms that make their own food. Plants require a specific environment that is ideal to them to be able to carry out the process. Environmental conditions can either increase or decrease the rate of photosynthesis. Things like colors of light, pH, and temperature can all affect the rate of photosynthesis in plants.

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms ' activities. Plants need photosynthesis to survive. The balanced chemical equation for photosynthesis is 6 CO2 + 6 H2O ? C6H12O6 + 6 O2. In English terms, this equation translates to six carbon dioxide plus six

Now, humans have a steady food supply so they do not have to move about. Therefore, people use fences to keep their animals in one place, which causes overgrazing. Today we see many subjects being affected by desertification. Ute Schaeffer reports the affects of desertification in, Down to Earth: News & Views on Desertification,“(doc.3) It has presented a challenge for governments and aid agencies in over 110 countries for some time, and is a contributing factor in poverty and regional conflicts, for example in Sudan. It has also been a major issue in Egypt, where 90% of the country’s land mass is desert. Faced with a rising population, the government has had to undertake a number of settlement and irrigation projects to create additional living and working space.” Necessary changes were made in order to adapt to the conditions of the desert and the obstacles that have to be faced. It is always presumed that there are only negative aspects to deserts but this isn’t always the case. There is a side to the Sahara desert that acts as a home to several living organisms. The Sahara has vegetation and access to water, which allows life to exist in this region. The Nile Valley, for example, is an area that is still quite full of foliage, trees and other growing things. This area is an exception, because of the way it is fed by the Nile River. Another area of the Sahara that has some vegetation to it is in the North, along the Mediterranean where olive trees grow

“Change in the timing and amount of stream flows and spring and seep discharges will affect a wide range of wildlife species, livestock, and wild horses and burros. Water availability from these sources could dry up earlier in the summer as a result of the early melt of the snowpack causing increased competition for water and forage across the landscape. Pipelines and troughs installed by BLM and livestock permits that provide water for livestock, wild horses, and wildlife species over tens of millions of acres may have a reduced capacity to meet these needs” (Pellant). “The Great Basin Desert is home to more than 77,000 mountainous acres of land, 5 distinctive habitats, 71 different kinds of mammals, 18 types of reptiles, and 800 different plant species” (Grange). With all this changing it will be difficult for the desert’s water to meet animal and nature’s needs for life. One animal this has an effect on is the Bull Trout an endangered fish and facing extinction in this desert

In his book, Cadillac Desert: The American West and Its Disappearing Water, Marc Reisner’s main thesis is to show the inefficiency, greed, and inherent difficulty in the American West’s never-ending struggle to turn its unwelcoming desert into a lush garden. One of his main sub-points is that the West is not meant to support millions of people. It has a wide range of geographic challenges throughout the entire region. Its inconsistency and diversity is a primary cause of its water problems. For example, Reisner notes that the West consists of “plains so arid that they could barely support bunchgrass; deserts that were fiercely hot and fiercely cold; streams that flooded a few weeks each year and went dry the rest; forests with trees so large it might take days to bring one down; . . . hail followed by drought followed by hail;” (23).

What exactly qualifies a neighborhood to be part of a food desert? Food deserts usually have a bunch of blocks without a corner grocery store. In a more severe case an entire neighborhood, or a whole bunch of neighborhoods do not have a mainstream grocery store. A mainstream grocery stored would be a grocery store like a Jewel, a Whole Foods, or an Aldi, where

Currently in the Unite States, food deserts spread all over the country and are expanding to many more rural areas. There are several attempts in many different research that tries to measure, locate and label food desert but in the end, there has not yet been an official scientific way to measure whether a place is included in a food desert and much more study is needed. However the USDA used the Census and Population data to create a food desert locator, which could be accessed by the general public. According to the food desert locator provided by the United States Department of Agriculture (USDA), it is obvious that west America is much more threatened by food deserts comparing to

Photosynthesis is essential to all living organism such as animals and plants. Photosynthesis is a process used by plants and other autotrophs to capture light energy and use it to power chemical reaction that converts carbon dioxide and water into oxygen, carbohydrates and water. (Textbook: Principles of Biology). The reactants and the products of photosynthesis are:

Climate: Africa contains both the world’s largest desert (the Sahara) and the world 's longest river (the Nile).Temperatures are highest in desert areas, particularly the Sahara. They are cooler across the south and in mountainous areas and plateau highlands. Rainfall varies dramatically across Africa.Changing weather patterns, however patterns of weather are changing, both locally and across the continent. The Sahara is the world 's largest low-latitude hot desert. The area is located in the horse latitudes under the subtropical ridge, a significant belt of semi-permanent subtropical, warm-core high pressure where the air from the upper levels of the troposphere tends to sink towards the ground. This steady descending airflow causes a warming and a drying effect in the upper troposphere. The sinking air prevents evaporating water from rising and, therefore, prevents the adiabatic cooling, which makes cloud formation extremely difficult to nearly impossible.

Photosynthesis is a huge concept to learn and understand in the field of biology. Plants have their own special way of using the ATP they produce. Photosynthesis is a process where plants harness the sunlight they receive and they produce carbohydrates, as well as oxygen for living things and other plants. Now the sunlight ultimately powers the process of

     Photosynthesis is a reproductive system that occurs in plants. The main components required for photosynthesizing are sunlight, energy, water and mineral from soil, and carbon dioxide from the air. Once these components are combined they

     Photosynthesis is a biochemical process in which plant, algae, and some bacteria harness the energy of light to produce food. Nearly all living things depend on energy produced from photosynthesis for their nourishment, making it vital to life on Earth. It is also responsible for producing the oxygen that makes up a large portion of the Earth¡¦s atmosphere. Factors that affect photosynthesis are light intensity and wave length, carbon dioxide concentration, and temperature.

As it can be seen in the reaction above that water is required in the process of photosynthesis, another thing which can be seen that in the reaction above is that plants need water to produce glucose. Plant gets its water from roots. The Water moves from the dirt into the plants ' roots hair. This occurs by a process called osmosis. Osmosis is the unconstrained net development of dissolvable atoms through a semi-penetrable membrane into an area of higher solute fixation, in the course that has a tendency to even up the solute fixation on the two sides. As I said above that osmosis draws

Desertification is a term few people recognize and even fewer are concerned about. This paper will cover what desertification is along with why it is a global crisis, what the root causes of desertification are, what can be done to reverse the harm full desertification process, it will also cover how farmers can work together to prevent future desertification.