subject
Physics, 15.12.2019 17:31 bre644

1. why is earth's temperature just right for life?
a: earth's core is hot enough to heat earth's surface.
b: earth's magnetic field creates suitable temperatures on earth's surface.
c: earth's crust is warmed by heat from the sun
d: earth's atmosphere traps heat from the sun, which makes earth's temperature suitable for living things
2. which of the following statrements accurately explains how earth's atmosphere supports life
a: earth's atmosphere contains 78 percent oxygen, which is essential for life.
b: earth's atmosphere contains 21 percent oxygen, which many life forms need to survive
c: earth's atmosphere contains more oxygen then carbon dioxide
d: earth's atmosphere contains carbon dioxide, which all life forms breathe in

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 18:10, HOTaco554
After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.
Answers: 1
image
Physics, 21.06.2019 18:40, lilblackbird4
What are the phases shown in a and d called?
Answers: 1
image
Physics, 22.06.2019 06:00, vittoriochavez9700
An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?
Answers: 3
image
Physics, 22.06.2019 09:30, looloo273
Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.
Answers: 2
You know the right answer?
1. why is earth's temperature just right for life?
a: earth's core is hot enough to heat ear...

Questions in other subjects:

Konu
Mathematics, 14.10.2019 12:50