Answer:
C
Explanation:
I am taking the test right now and it seems to be the most valid answer
The number who reach sixty years of age will be higher because first of all, there will more and better health services available and the life expectancy of people is expected to rise.
Autotrophs are organisms that produce complex organic compounds (fats, carbohydrates, proteins). Ex: planta, algae and some bacteria.
Heterotrophs are organisms that can’t produce their own foods (organic compounds) so they rely on eating other organisms (plants or animals) to obtain their energy. Ex: dogs, humans, cats, giraffes, ect.
Answer:
light
Explanation:
An abiotic factor is a non-living component in the environment. This can be either a chemical or physical presence. Abiotic factors fall into three basic categories: climatic, edaphic and social. Climatic factors include humidity, sunlight and factors involving the climate. Edaphic refers to soil conditions, so edaphic abiotic factors include soil and geography of the land. Social factors include how the land is being used and water resources in the area. Five common abiotic factors are atmosphere, chemical elements, sunlight/temperature, wind and water.
Temperature and Light

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Temperature of the air and water affect animals, plants and humans in ecosystems. A rise in temperature has the potential to change the way a living thing develops, because it changes the metabolic rate of the organism. All living organisms have a tolerance level for temperature range. For example, a human being would die if he stood out in minus 50 degree temperatures for any length of time. Light exposure often affects the temperature. Areas with direct sunlight are warmer
Answer:
Evidence of Sea Floor Spreading Harry Hess’s hypothesis about seafloor spreading had collected several pieces of evidence to support the theory. This evidence was from the investigations of the molten material, seafloor drilling, radiometric age dating and fossil ages, and the magnetic stripes.
Explanation:
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