Questions

These are called intrusive igneous rocks because the magma has intruded into pre-exiting rock layers. Types of intrusive igneous rocks are granite and basalt .

A batholith is the largest of the intrusive bodies.

Hub works on layer 1 i.e, physical layer.

In an ecosystem, Autotrophs performs photosynthesis. Autrophs are those prepare their own food.

There is no difference except for the fact that the first one gives a hint that the function fun() is probably in another source file.

Exercise frequency refers to number of times you exercise per week.

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.