Which is NOT true about a carrier for a genetic disorder? a. They are heterozygous for the disorder.

b. They have the disorder.

c. They had at least one parent with the disorder.

d. They may have siblings that have the disorder.
***Giving brainlist***

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

whats the answer to your question?

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.