Which of the genotypes below would be heterozygous? Choose all that are.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds