Question

the increase of certain types of gases in the atmosphere has contributed * 1 point to the problem of global warming. all these gases are
(1) biotic factors
(2) abiotic factors
(3) organic factors
(4) endangered factors

autotrophs might survive when heterotrophs cannot, because autotrophs * 1 point

Explanation:

First Question (about global warming gases):

To solve this, we analyze the options:

• Biotic factors are living or once - living components of an ecosystem (e.g., plants, animals, bacteria). Gases like carbon dioxide, methane (contributing to global warming) are not living, so (1) is incorrect.
• Abiotic factors are non - living components of an ecosystem, such as air, water, soil, and gases. The gases contributing to global warming (e.g., CO₂, CH₄) are non - living, so they are abiotic factors.
• There is no standard ecological term "organic factors" in this context to describe these gases, so (3) is incorrect.
• "Endangered factors" is not a recognized ecological term related to classifying gases, so (4) is incorrect.

Autotrophs (e.g., plants, some bacteria) can produce organic food (like glucose) from inorganic materials (e.g., CO₂, H₂O) via processes like photosynthesis or chemosynthesis. Heterotrophs (e.g., animals, fungi) rely on consuming organic matter from other organisms. In environments with no pre - formed organic food (for heterotrophs to eat), autotrophs can still make their own food, so they can survive when heterotrophs cannot.

Answer:

(2) abiotic factors

Second Question (about autotrophs and heterotrophs):

(Assuming the question is to explain why autotrophs might survive when heterotrophs cannot, and we need to answer it. Since the full question about options is not shown, but based on knowledge: Autotrophs can produce their own food (e.g., through photosynthesis or chemosynthesis), while heterotrophs depend on consuming other organisms. So when food sources for heterotrophs are scarce (e.g., in extreme environments with no pre - formed organic matter), autotrophs can still make their own food. If we assume common options related to this, for example, if options are about producing food, the key is autotrophs' ability to synthesize organic compounds from inorganic sources. But since the options are not fully visible, if we were to answer based on the concept: Autotrophs can survive when heterotrophs cannot because autotrophs can produce their own food (e.g., via photosynthesis/chemosynthesis) using inorganic substances, while heterotrophs rely on consuming organic matter from other organisms. If we need to match with typical options, for example, if an option is "can make their own food from inorganic materials", that would be the correct one. But as the options are not fully provided, we can state the principle: Autotrophs have the ability to produce organic nutrients (like glucose) from inorganic raw materials (e.g., CO₂, H₂O, inorganic salts) through processes like photosynthesis (in plants, algae) or chemosynthesis (in some bacteria), while heterotrophs must obtain organic nutrients by consuming other organisms. So in environments where there are no pre - formed organic nutrients (food) for heterotrophs to consume, autotrophs can still survive by making their own food. If we had to give an answer based on a common question structure, for example, if the options were:
A. need to consume other organisms for food
B. can produce their own food from inorganic substances
C. are always larger in size
D. can move to find food

Then the answer would be B. can produce their own food from inorganic substances. But since the options are not fully shown, we can provide the explanation of the concept.)