Because we as humans need sunlight to grow just like plants if we don't get sunlight we become fragile but by a lot we are different
Answer:
a.)It will rise faster in cooler air
a.) heat
Explanation:
i
A hot air balloon rises faster if cold air were to surround it due to density differences between the air in the two medium.
- Hot air is less dense as the average kinetic energy of the molecules is greater.
- Cold air is denser.
- This density contrast causes the balloon to move up at a high pressure.
ii. Heat
The average kinetic energy of the molecules in a substance is termed heat.
Heat is a form of thermal energy measured by the kinetic energy possessed by molecules in a substance.
Answer:
Key stone Species
Explanation:
Keystone Species are the ones which impact the entire ecosystems and all the organisms with in it.
Keystone species are responsible for maintaining the overall structure and function of the ecosystem.
For example – small predators in any ecosystem which feed upon the herbivores organism in order to preserve the plant species act as key species. Their presence is essential for maintaining the dominant plant species in the ecosystem
Answer:
Explanation:
I would say A. Learning to ride a bicycle is a process of getting on and falling off. You have no idea how to do it properly without practice. That's learned.
But look out for D. I'm not sure that that isn't instinctive. Somewhere along the line I think even a baby knows not to let his/her eyes be touched. Is it learned? It's close but A is a much better answer.
The salmon is instinctive. The plant doesn't learn to turn towards the sun. It does so because more food is produced.
