Gases are natural and in the ground, metals are also in the ground as are non metals -just look at dirt- and minerals are usually found in geodes, which are usually fallen bits of asteroid and meteorite that has survived earth's atmosphere

4 0

3 years ago

To measure the population of lake trout in a 250-hectare lake, 400 individual trout were netted and marked with a fin clip, then

kenny6666 [7]

Answer:

Estimated size is 1600

Explanation:

Given data:

Size of lake is 250 hectares

Total number of trout who netted is 400

Total number of trout in next week is 200

Total number of trout having fin clip 50

estimation population size is estimated by mark rupture as follow

Estimated population size $= \frac{(marked\ initally \times total\ recaptured)}{mark\ recaptured}$

Estimated size $= \frac{400\times 200)}{50}$

Estimated size is 1600

4 0

3 years ago

Which consumer are maggots in the food chain

tangare [24]

Maggots are decomposers

3 0

3 years ago