Quarterly report pursuant to Section 13 or 15(d)

6. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)

6. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)	9 Months Ended
	Jan. 31, 2021 $ / shares shares
$0.065 [Member]
Number of Warrants exercisable	769,231
Weighted Average Remaining Contractual Life (Years)	10 months 17 days
$0.0575 [Member]
Number of Warrants exercisable	869,565
Weighted Average Remaining Contractual Life (Years)	1 year 2 months 1 day
$0.03 [Member]
Number of Warrants exercisable	2,500,000
Weighted Average Remaining Contractual Life (Years)	1 year 9 months 25 days
$0.026 [Member]
Number of Warrants exercisable	1,923,077
Weighted Average Remaining Contractual Life (Years)	2 years 4 months 28 days
$0.025 [Member]
Number of Warrants exercisable	2,000,000
Weighted Average Remaining Contractual Life (Years)	1 year 5 months 23 days
$0.018 [Member]
Number of Warrants exercisable	1,388,889
Weighted Average Remaining Contractual Life (Years)	2 years 3 months 29 days
$0.011 [Member]
Number of Warrants exercisable	2,272,727
Weighted Average Remaining Contractual Life (Years)	2 years 9 months
$0.01 [Member]
Number of Warrants exercisable	13,200,000
Weighted Average Remaining Contractual Life (Years)	4 years 2 months 1 day
$0.015 [Member]
Number of Warrants exercisable	833,333
Weighted Average Remaining Contractual Life (Years)	4 years 2 months 19 days
$0.009 [Member]
Number of Warrants exercisable	3,333,333
Weighted Average Remaining Contractual Life (Years)	3 years 5 months 1 day
$0.0075 [Member]
Number of Warrants exercisable	15,666,666
Weighted Average Remaining Contractual Life (Years)	4 years 5 months 27 days
$0.005 [Member]
Number of Warrants exercisable	20,500,000
Weighted Average Remaining Contractual Life (Years)	3 years 10 months 17 days
Warrants [Member]
Number of Warrants exercisable	65,256,821
Weighted Average Remaining Contractual Life (Years)	3 years 9 months 29 days
Weighted average exercise price exercisable \| $ / shares	$ 0.01