I need help
water that causes erosion picks up
A. sediment
B. sewage
C. pollutants
D. algae

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

What do nitrifying bacteria convert