Its called lava
its because it has just erupted from the volcanoe
Answer:
Because volvox can photosynthesise
Explanation:
Volvox is a multicellular algae. They grow in spherical colonies.
Its cells contain chloroplasts meaning it can photosynthesise. This means it can use light energy from the sun to synthesise its own food. Therefore, it doesn't need to capture food from the environment.
The answer
is energy is transformed to vibrational energy in the sand, rocks, and air, cold
water from the poles sinks, leaving behind higher salinity water. The beach is
an isolated system, so energy is allowed to exit the system not the energy from
the water is destroyed.
<u>Answer:</u>
Collection of data is the part of an observational study.
Option: (c)
<u>Explanation:</u>
- Observational study is the non-experimental research that is usually used in the investigation of certain effects that is due to the treatment.
- The observational study is qualitative study. The major part of the observational study is to collect data and analyze it properly.
- It is used in many fields like sociology, psychology and statistical aspects.
- Mainly there are three types of observational study: cross-sectional, case-control and cohort study.
