The desert.
Since the desert is made of sand, wind erosion can move deserts or parts of them entirely.
The three ways on how toxins can enter an animal’s body is:
1.
Oral Entry. This is through the mouth- the food
they eat or the liquid they drink.
2.
Derma Entry. This is through skin and the eyes.
3.
Respiratory Entry. This is through the mouth and
nose.
This Question is not complete
Complete Question
There were 100 new cases of syphilis last year in a given population of 100,000 people. At that time, 500 people in this population already had syphilis. The incidence of syphilis in this population is __________.
a. 100 per 100,000
b. 500 per 100,000
c. 1000 per 100,000
d. 5000 per 100,000
Answer:
a. 100 per 100,000
Explanation:
Incidence rate of a population can be defined as the rate at which an disease occurs in a population.
The incidence of a population is calculated as
The number of new cases ÷ The population of the people
From the above question,
The number of new cases = 100
The population of the people = 100,000
The incidence = 100 ÷ 100,000
The incidence of syphilis in the population is 100 per 100,000
A, this is my guess because topsoil is made mostly of humus(sand, silt, clay and broken down organic matter) and the rest of the answers don’t make sense, hope this helps :]
