What Is the Most Current State of Evidence to Link

question 136

Multiple Choice

What is the most current state of evidence to link childhood vaccines and autism spectrum disorder (ASD) ?

• A)There is no evidence to suggest that vaccines cause autism.
• B)Thimerosal (a childhood vaccine) is not related to autism, but a higher overall number of vaccines received by a child increases risk for developing autism.
• C)Vaccines do not cause autism, but they do speed up the development of symptoms.
• D)Certain vaccines have been found to directly induce autism.

Interpret the sedimentary environment based on rock characteristics and sedimentary structures.

Describe the processes leading to the formation of common sedimentary rocks and their characteristics.

Understand the erosional and depositional processes that shape landscapes in areas of clastic and carbonate rock exposure.

Recognize the impact of environmental conditions on sedimentary rock formation and weathering.