amount of water on earth

I have an interesting question, does the amount of water on earth ever change or is it constant and it just manifests itself in various forms?

Similarly does the amount of all chemical elements, like Oxygen, hydrogen ever change or are they constant?

Who knows except God.. 

Ryan has now known how to swim

I am waiting for this to happen as he has been learning to swim for 3 years now,
Last week i noticed he found it out finally, 24th sep 2019 was when he showed his learning prowess in the pool, another proud moment.

Ryan started making chapattis

I dont think i had started this early but Ryan started making rotis now, at the age of six and a half.
Its incredible, he is obviously inspired by me. Yesterday, 6th oct 2019 was for the second time that he did and i can see he is improving.
Imagine your 6.5 year old son making rotis for you, i felt so proud yesterday.

Few questions that I am seeking answers for

Firstly I am a devotee of Narayana and shiva, as part of my readings I got few questions and wanted to know the answers.
1. Why did all the dasavatharams of lord Vishnu happen in india?
2. Lord Vishnu reincarnated as  SriRama and SriKrishna to establish Dharma, but why did my Narayana was born in India and not in any other parts of the world?

Growing tomatoes

Yep, they are easy to grow, we are harvesting already, we planted in sep 18 and the three plants started producing fruits since dec 18.
The problem is with unihorn caterpillar, lots of fruits and leaves were affected, i used organic insecticide and chillie/pepper insecticide, its working.
The plants are growing sideways as we dont have enough support, they are looking really good, they are in direct sun, next to eggplant and marigolds, eggplants are not growing much though.