Which of the following best explains why mars' and venus' surface temperatures vary, despite both planets having atmospheres that contain mostly carbon dioxide?
a) mars surface has red rocks and sand that deflect heat
b) venus surface has high mountains that reflect heat
c) venus has a thick atmosphere that blocks heat from surface
d) mars has a thin atmosphere and cant hold much heat
c) venus has a thick atmosphere that blocks heat from surface
why is venus the hottest planet?
its rich in carbon dioxide
it has an abundance of nitrogen and oxygen gas
its closest to the sun
it has a core, mantle, nd a crust
The correct answer is: it is closest to the sun.
what percent of earths atmosphere does carbon dioxide make up?
Currently, carbon dioxide makes up approximately 0.04% (or 400 parts per million) of Earth's atmosphere.
Charlie is walking to the store, which is 1 mile away. He can walk a pace of two-thirds mile in 16 min. How long will it take to walk to the store?
If Charlie can walk two-thirds of a mile in 16 minutes, we can set up a proportion to find out how long it will take to walk the full mile.
1 mile / x minutes = 2/3 mile / 16 minutes
Cross-multiplying the proportion:
1 mile * 16 minutes = (2/3) mile * x minutes
16 = (2/3) * x
To solve for x, we can multiply both sides of the equation by 3/2:
16 * (3/2) = x
24 = x
Therefore, it will take Charlie 24 minutes to walk the full mile to the store.
Ted bought 3 and one halfs worth of cake. 20 people want the cake. What is the unit per pound of cake per person?
To find the unit per pound of cake per person, we need to divide the total amount of cake (in pounds) by the number of people.
First, we need to convert 3 and one halfs to an improper fraction. 3 and one halfs can be written as 7/2.
Next, we can divide 7/2 (pounds of cake) by 20 (number of people):
(7/2) / 20
To divide fractions, we need to multiply by the reciprocal of the second fraction, so we have:
(7/2) * (1/20)
Multiplying across:
(7 * 1) / (2 * 20) = 7/40
Therefore, the unit per pound of cake per person is 7/40.