weather patterns change constantly over time. From your own memory, what weather eventss cam you recall? can you find evidence in your own experience of climate change ? what does your ability to recall climate changes tell you about the importance of data collection?

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

that scientist would be robert hooke

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.