Question

1. enters the soil and water when rock breaks down in this cycle
2. makes up 78% of atmosphere
3. thin outermost zone of the earth
4. earths actual shape
5. sequence in which organisms consume others
6. largest population an environment can support
7. community of organisms and their abiotic environment
8. break down dead organisms

Explanation:

To solve these fill - in - the - blank questions related to Earth science and biology, we analyze each one:

Question 13

The gas that makes up 78% of the Earth's atmosphere is nitrogen.

Question 15

The thin outermost zone of the Earth is the crust.

Question 17

The Earth's actual shape is an oblate spheroid (it is slightly flattened at the poles and bulges at the equator).

Question 18

The sequence in which organisms consume others is a food chain.

Question 19

The largest population an environment can support is called the carrying capacity.

Question 20

A community of organisms and their abiotic (non - living) environment is an ecosystem.

Question 21

Organisms that break down dead organisms are decomposers (such as bacteria and fungi).

Question 9

When rock breaks down (through processes like weathering), minerals enter the soil and water. If we assume it's about a nutrient cycle (like the phosphorus cycle or the carbon cycle), the substance that enters the soil and water from rock breakdown could be minerals (for example, in the phosphorus cycle, phosphate rocks weather and release phosphate into the soil and water).

Answer:

s:

1. Minerals (or specific nutrient like Phosphate depending on the cycle)
2. Nitrogen
3. Crust
4. Oblate Spheroid
5. Food Chain
6. Carrying Capacity
7. Ecosystem
8. Decomposers