38. The rate of soil development in tropical areas is usually greater than the rate of soil development in
arctic areas because tropical areas have
A) less chemical weathering and a scarcity of
living organisms
B) less chemical weathering and an abundance of
living organisms
C) more chemical weathering and a scarcity of
living organisms
D) more chemical weathering and an abundance of
living organisms

the sphincter muscles at the end of the digestive tract is the anus.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds