Question

Укажите методы, с помощью которых можно изучать следующие явления природы.1. Полёт птицы- _____2. Скорость роста растения- ______3. Влияние частоты полива на рост и развитие растения- ____4. Какие места предпочитают скворцы и ласточки для строительства гнёзд- ______5. Продолжительность зимней спячки у бурого медведя- ___6. Какие организмы обитают в пруду- ____7. Какой размер пастбища достачен для прокорма стада северных оленей- ____

Answer 1

Полёт птицы- наблюдение.
2. Скорость роста растения- наблюдение.
3. Влияние частоты полива на рост и развитие растения- эксперимент.
4. Какие места предпочитают скворцы и ласточки для строительства гнёзд- сравнение, наблюдение.
5. Продолжительность зимней спячки у бурого медведя- наблюдение.
6. Какие организмы обитают в пруду- наблюдение.
7. Какой размер пастбища достачен для прокорма стада северных оленей- измерение, эксперимент.

Answer 2

Methods for studying natural phenomena:

1. Flight of birds: The study of bird flight can be conducted using various methods, including: - Field observations: Researchers can observe birds in their natural habitats, noting their flight patterns, wing movements, and behavior. - Radar tracking: Doppler radar can be used to track the flight paths and speeds of birds. - GPS tracking: Researchers can attach GPS devices to birds to track their flight routes and gather data on their flight patterns and migration. - High-speed cameras: Capturing high-speed footage of birds in flight can provide detailed information about their wing movements and aerodynamics.

2. Plant growth rate: The speed at which plants grow can be studied using the following methods: - Time-lapse photography: Taking regular photographs of plants over an extended period allows researchers to observe and measure their growth rates. - Marking and measuring: Researchers can mark specific points on plants and measure the distance between them at regular intervals to track growth. - Weighing: By weighing plants at different stages of growth, researchers can determine the rate at which they accumulate biomass.

3. Effect of watering frequency on plant growth and development: To study the impact of watering frequency on plant growth and development, researchers can use the following methods: - Controlled experiments: Researchers can set up controlled environments where plants are subjected to different watering frequencies, and their growth and development are monitored and measured. - Soil moisture sensors: These sensors can be placed in the soil to monitor and record moisture levels, allowing researchers to correlate watering frequency with plant growth.

4. Preferred nesting sites for starlings and swallows: The choice of nesting sites by starlings and swallows can be studied using the following methods: - Nest box monitoring: Researchers can install nest boxes and observe which ones are chosen by starlings and swallows for nesting. - Field observations: By observing the behavior of starlings and swallows in their natural habitats, researchers can identify their preferred nesting sites, such as trees, buildings, or cliffs.

5. Duration of hibernation in brown bears: The duration of winter hibernation in brown bears can be studied using the following methods: - Radio telemetry: Researchers can attach radio collars to bears to track their movements and monitor their hibernation patterns. - Den monitoring: By locating bear dens and monitoring the activity inside, researchers can determine the duration of hibernation.

6. Organisms inhabiting a pond: The study of organisms inhabiting a pond can be conducted using the following methods: - Sampling and identification: Researchers can collect samples of water, sediment, and organisms from the pond and identify the different species present. - Microscopic examination: Microscopes can be used to observe and identify microscopic organisms, such as algae and protozoa, in the pond.

7. Size of grazing grounds required for a herd of reindeer: The size of grazing grounds required for a herd of reindeer can be studied using the following methods: - GPS tracking: Researchers can attach GPS collars to reindeer to track their movements and determine the size of the areas they graze. - Aerial surveys: Aerial surveys can be conducted to estimate the size and quality of grazing grounds available to reindeer herds.

Please note that the methods mentioned above are just a few examples, and there may be other techniques and approaches used to study these natural phenomena.