The answer is chemical weathering .
It is B, smoke and air pollution can stress the lungs and cause things like Respiratory distress if not wearing a proper mask. That is why in places with massive amounts of air pollution many people will wear face masks.
Answer:
352
Explanation:
.75 times 472 because .25 is sugar so .75 is watet
Answer:
The heat lost by the water
3.8 KJ
The heat gain by ice
= 228.76 J
The heat required to melt the ice
= 3340 J
Explanation:
Mass of ice cube
= 10 gm
Initial temperature of ice cube
= 0 °c
Mass of water
= 100 gm
Initial temperature of water
= 20 °c
Final temperature of mixture
= 10.93 °c
(a). Total heat lost by the water
(
-
)
⇒
100 × 4.184 (20 - 10.93)
⇒
3.8 KJ
This is the heat lost by the water.
(b). Heat gained by the ice cube
=

⇒
= 10 × 2.093 × ( 10.93 - 0)
⇒
= 228.76 J
This is the heat gain by ice.
(C). Heat required to melt the ice
=
× Latent Heat
⇒
= 10 × 334
⇒
= 3340 J
This is the heat required to melt the ice.