The article shares five threats to biodiversity: habitat
destruction, climate change, invasive species,
overexploitation of resources, and pollution. Which of
these is a threat to life in your area? What animals
and plants does it threaten?

the answer to your question is a plant

the real answer is b. scintillation counter

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

i believe your answer would be c.. : )