It is the ozone layer. if we didnt have that we would be exposed to solar radiation but if there is to much caused by greenhouse gases it will bacome to thick leading to a ice age as the sun can no longer pass through.
Answer: The correct answers are:
1. Many immigrants were looking for political freedom that had been denied them at home.
2. Most immigrants could already speak English when they arrived in America.
Explanation: Concerning the first answer, many immigrants leave their country because the political turn economical issues deny them their basic right.
Concerning the second answer, most people who apply as immigrant would have had a basic knowledge of English for them to effectively apply.
Answer:
Countries with relatively high populations, but lower population density have the highest potential to become highly populated.
Explanation:
Countries that already have relatively high populations obviously can sustain higher populations. Their cultures are likely ones that favour having many children, and the country is not so poor that families are able to grow large. Countries that have these features, and a lower population density have the highest potential to become highly populated because there is more land area for the people to spread out over and enlarge and create new cities.
Answer: at the equator the normal force will be 3.4N less and at the North Pole = 980N
Explanation:
So, we will start the Calculation by considering the equation below;
Fnet = F(g) - F(N); where Fnet = mv^2/ r.
Hence, F(g) - F(N) = mv^2/ r -------------(1).
Making F(N) the subject of the formula, we have;
F(N) = Gm1m2/r^2 - mv^2/r.
Thus, we have;
Gm1m2/r^2 = 6.68 × 10^-11 × (5.98 × 20^24) × 100/ 6.38 × 10^6 = 980N.
Also, we have;
mv^2/r = m4π^2r/T^2.
100 × 6.38 ×10^6 × 4π^2/(24 × 3600)^2 = 3.4N
Therefore, at the equator the normal force will be 3.4N less and at the North Pole = 980N.
Western cape, south Africa
