Answer:
N, B, Be, C
Explanation:
N (Nitrogen) has 14.0067 B (Boron) has 10.81 Be (Beryllium) has 9 and C (Carbon) has 12
It is true because the sun rays hit towards the equator creating warm temperatures near the equator then the poles
Answer : The density of the block is estimated to be,
.
Explanation :
Density of the water, 
As we know that,
Buoyant force = 
where,
g = gravitational acceleration
volume of the block = v
density of the block = 
Weight of the Block = Buoyant force exerted by water




Thus, the density of the block is estimated to be,
.
Answer:
weathering
Explanation:
one brakes it down the other carries it away