satellite image of the Sahara Desert
Why are deserts so hot?
Deserts are hot primarily because of a lack of water. When the sun shines on the ground, all of the absorbed sunlight goes into raising the ground's temperature. If there was moisture in the soil, much of this heat would go into evaporation of some of the water, which requires heat to accomplish, and thus keeping the soil cooler that it would otherwise be. This cooling is from the "latent" heat of evaporation that is required to change liquid water into water vapor, and is the same reason why water evaporating from your skin feels cold.
Associated with the lack of water is a lack of vegetation, which would also cause water to evaporate as part of photosynthesis -- a process called evapotranspiration.
The common perception that deserts are hot because of the bright sand is incorrect. Since vegetation is darker than most desert soils, if a desert could have vegetation that didn't need water to live, the desert would actually be hotter since it would absorb more sunlight. Instead, the vegetation causes water to evaporate (and uses some of the sunlight for other plant growth process). Similarly, if deserts were covered by dark soil rather than light soil or sand, they would also be hotter.
Interesting facts:
DESERTS ARE COLD AT NIGHT:Because of the lack of water in the ground, and little water vapor in the air, most deserts can get quite cool at night. This is because (1) dry ground does not retain as much heat as moist ground, and (2) water vapor is the most important greenhouse gas, so dry air allows the surface to cool rapidly at night through loss of infrared radiation to outer space.
In fact, it has been calculated that the Sahara Desert actually loses more infrared radiation than it gains solar radiation from the sun. This net loss of radiant energy is balanced by the sinking air over the desert, which warms as it is compressed. The air over the desert is, in turn, being forced to sink by rising within rain systems hundreds or thousands of miles away. Thus, in some sense, rain can be considered the cause of deserts(!).
Explanation:
Waterloo finishes any hopes of France's rivaling Britain as the dominant power in the world. That is what they were actually fighting over. That fight goes all the way back to the Seven Years War. That is a great British victory because it gets rid of France from Canada.Jun 16, 2015
republican party in 1860 had views of anti slavery. The democrats had a different view and the two had a split.
<h3 /><h3>Who is Democrat?</h3>
Democrat is a party which was a part of the Democrat - Republican Party until the year 1860. The party was a single party and was split into two during the year 1860.
The reason for the split of the two parties that is the Republican party and the Democrats was due to the views over the slavery. The Republican party was against slavery and wanted to end it from the America and ultimately from the entire world.
The Democrats did not shared the same views as the views of the Republican Party and so the Two parties parted their ways and one was called republican party and the other as the Democrats. Both the parties still exist.
Learn more about the Democrats at brainly.com/question/27222020
#SPJ1
The period between the normal onset of puberty and the beginning of adulthood is referred to as the adolescence period.
<h3>What do you mean by adolescence period?</h3>
Adolescence refers to the period of change between childhood and adulthood.
Different changes such as physical, intellectual, and social development an individual pass through. The adolescence period begins at puberty.
Puberty starts from the age of 12 to 19 and it is one of the part of adolescence. One of the characteristics of adolescents is biological growth and development.
Thus, Option C. Adolescence is the correct answer.
To learn more about adolescence, refer:
brainly.com/question/1956818
The best and most correct answer among the choices provided by your question is the second choice or letter B.
Galileo Galilei was the <span>scientific thinker who posed theories that brought him into direct conflict with the Catholic Church.</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
