Answer:
Limestone areas are predominantly affected by chemical weathering when rainwater, which contains a weak carbonic acid, reacts with limestone. This causes the limestone to dissolve. Carbon dioxide from the respiration of animals (and ourselves) is one cause of increased carbon dioxide in the atmosphere.
Answer:
Option (4)
Explanation:
Here, Speed of light=
Km/sec
Distance=
Km
We know that,




=500 sec
=8 minutes 20 sec
Hence, the correct answer is option (4) i.e 8 minutes.
that statement is False
All states in the United States have enacted balanced budget amendments. But the amendments is still a grey area in Vermont since they technically still hasn't be able to fulfill the balanced budget amendments